50 Science-Backed Health Facts That Will Blow Your Mind — Best Life

With the plain number of health trends and alleged health “ experts ” out there, it can be hard to trust the information you hear about your physical and mental wellbeing. But by turning to inquiry and data, you can parse out the hard truths about your health from the nonsense. And to help you out, we ‘ve compiled 50 facts about everything from your body to your mind that are surprise, but 100 percentage true. From the improbable sense heightened by anxiety to the shocking connection between your birthday and your death, these astonishing science-backed health facts will blow your mind .


Urinating in a pool is dangerous for your heart .

two little girls having fun in the pool Though decidedly unsanitary, peeing in a pool might seem harmless for your health. After all, urine is sterile, as is chlorine. As it turns out though, urine and chlorine create dangerous chemicals when combined. In fact, that alleged “ pool smell ” is actually the olfactory property of those chemicals, as Xing-Fang Li, an environmental chemistry professor who conducted research on the topic, told NPR. One of those chemicals—cyanogen chloride—is classified as a chemical war agent and can damage your heart and lungs. other byproducts, called nitrosamines, can even cause cancer.


You typically lone breathe through one nostril at a clock time .

young blonde woman relaxing at work You might think that your nostrils contribution the workload when it comes to inhaling and exhaling. And while they do, it ‘s not quite in the way that you might expect. You actually inhale and exhale through one nostril at a fourth dimension, according to definitive inquiry published in the journal Mayo Clinic Proceedings in 1977. Every few hours, the active nostril will take a fail and the early one will take over until they ultimately switch back again. Put your feel under your nozzle and try it. Prepare to be amazed !


anxiety can make badly smells evening worse .

Asian woman holding her nose because something smells bad Speaking of your nose, a 2013 sketch published in The Journal of Neuroscience examined the way certain emotions affect your sense of smell. After exposing subjects to anxiety-inducing images like car accidents and war, researchers found that neutral scents became unpleasant and bad smells became tied worse .


Men are more unmindful than women .

Man scratching his head confused numerous studies dedicated to comparing the memory abilities of men and women systematically prove that men are more forgetful than women. One 2015 analyze published in The quarterly Journal of Experimental Psychology hypothesizes that this could be due to the varying brain structures of men and women—specifically, that the hippocampus ( the depart of the brain associated with memory ) begins to decrease in volume faster in men than in women .


Your pupils can hint at your Alzheimer ‘s risk .

Woman with dilated pupils Of path, the revealing sign of Alzheimer ‘s disease is memory personnel casualty, but dementia besides manifests itself in your eyes. In a 2019 sketch published in the journal Neurobiology of Aging, researchers noted that the disease affects the venue coeruleus, a cluster of neurons in the brainstem responsible for pupillary responses, among early things. As a consequence, individuals with cognitive disability who are at gamble of developing Alzheimer ‘s have greater schoolchild dilation while performing cognitive tasks .


Eating testis improves your reflexes .

Woman eating scrambled eggs, cheese, tomatto and bread in restaurant by the water If you want to be able to respond more cursorily, you can start by having an omelet for breakfast. Eggs contain an amino acid called tyrosine, which the body synthesizes into noradrenaline and dopamine, compounds that increase energy and alertness and improve temper. In a 2014 study published in the journal Neuropsychologia, researchers flush found that tyrosine enhances our reply time and improves our intellectual operation, not unlike a checkup stimulant like Ritalin or Modafinil .


Your blood makes up closely one-tenth of your sum torso weight .

white man standing on scale When you look at how much you weigh on the scale, you probably think that number is compromised of fatty and muscle. But did you know that your blood makes up 8 to 10 percentage of your total soundbox weight ? Hematologist and oncologist Daniel Landau, MD, explained to Live science that the average pornographic has anywhere from 1.2 to 1.5 gallons of lineage flowing through their veins .


But a newborn baby is born with barely any rake .

Newborn baby in a crib naturally, newborn babies do n’t have closely a a lot blood as adults do. So how much are they working with precisely ? According to Landau, it ‘s typically nobelium more than 1 cup of blood for the average 5-to-8-pound newborn .


And how much you weigh at parturition can determine your allergy gamble .

Little girl with cream on her arm for her eczema allergic reaction Though it ‘s hard to tell whether a person will develop allergies, scientists have found that it is possible to determine an baby ‘s likelihood of developing childhood food allergies or eczema based on one thing : their weight. In a 2019 meta-analysis from the University of Adelaide, researchers found that for each kilogram addition in give birth weight, there was a 44 percentage increase in the gamble of childhood food allergies and a 17 percentage increase in the gamble of eczema .


A check bite can make you allergic to red kernel .

Tick crawling up a person's arm There are batch of food allergies out there, but few are the result of an insect pungency. In a strange and growing tendency, some people who get bitten by the Lone Star tick develop a sudden allergy to red meat, according to the American College of Allergy, Asthma, and Immunology. Beef, lamb, pork, and capricorn ( which are technically classified as loss meats ) can make people with this allergy experience vomit, cramps, trouble breathe, and hives. In severe cases, it can cause the person to stop emit wholly. For some people, the allergy fades over time, but for others, it ‘s permanent .


And red meat makes body olfactory property bad .

Person holding a burger Carnivores, beware. Though diet is not the only agent that affects natural soundbox olfactory property, a 2006 study published in the diary Chemical Senses found that consuming kernel can have a huge effect on the “ attractiveness ” of your body olfactory property. Participants who refrained from eating crimson kernel were by and large perceived as smelling more pleasant, less intense, and more attractive overall .


The olfactory property of apples can ease claustrophobia .

Man eating an apple An apple a day can keep your claustrophobia away. According to Alan Hirsch, MD, of the Smell & Taste Treatment and Research Center in Chicago, smelling a green apple can change your perception of space, making rooms feel larger than they very are. Hirsch conducted a 1995 experiment on the subject—and during this study, he besides found that cucumbers have a similar effect, while the smell of barbecue smoke has the opposition effect .


Most of the fatty you lose exits your body via your lungs .

Mature white man running and doing cardio on the treadmill While cryptic breaths do n’t burn besides many calories, this is  how most burned-off adipose tissue exits your soundbox. You may have thought it was largely through sweat, urine, or some other elimination, but the truth is that as you exercise or go about your day, the majority of the fatten you lose—84 percentage, according to 2014 research published in the british Medical Journal —is converted into carbon paper dioxide and leaves your body through your lungs. The remaining 16 percentage is converted to water, which exits your body through urine, feces, effort, tears, or other bodily fluids .


Humans are the only animals with chins .

Vietnamese man rubbing his chin looking pensive Try to picture another animal besides a homo with a kuki. You ‘re credibly not able to, right ? Well, that ‘s because humans are the merely animals with chins. Of class, other animals have jaws, but as anthropologist James Pampush told The Atlantic, “ only humans have chins. ” Though scientists are n’t entirely sure why we have this feature of speech, one theory is that our chins make it easier for us to chew. Who knew ?


A surprise number of people have an supernumerary bone in their stifle .

X-ray of a knee with a fabella It turns out that some people have an extra bone in their knee called a fabella. While this short bone with an unknown determination was previously less common, over the last hundred, it ‘s started to pop up on X-rays more and more. According to a 2019 study published in the Journal of Anatomy, humans were closely 3.5 times more likely to have a fabella in 2000 than in 1900 .


More than half of your bones are in your hands and feet .

elderly hands with baby hands There are 206 bones in the adult human torso. And with 27 bones in each hand and 26 in each foot, these skeletal structures are the most complex, amounting to 106 bones sum between all four limbs, according to the BBC .


Wearing heels helps you make better choices .

woman shopping in heels health facts A 2013 study published in the Journal of Marketing Research found that people shopping with heels on had a heightened sense of poise, which helped them make better choices when it came to outgo. With libra on the genius, shoppers were more probable to avoid big purchases, opting rather for average-priced products. This is called the balance effect—and it holds true for those who shop immediately following a yoga class equally well .


Riding a roller coaster could help you pass a kidney stone .

People on a roller coaster ride in Orlando Florida at disney world After multiple people reported passing kidney stones while riding Walt Disney World ‘s big thunder Mountain Railroad drive, a research team from Michigan State University decided to investigate the phenomenon in 2016. The researchers conducted tests with a mannequin kidney and found that there was a 64 percentage kidney stone pass rate for those seated in the rear of the roller coaster. That total was 16 percentage for those seated in the front man. According to the head research worker, the ideal coaster for passing kidney stones “ is roughly and promptly with some twists and turns, but no top toss off or anatropous movements. ” And intelligibly, you ‘ll want that front row seat .


Fingernails grow faster on your dominant hand .

lunule on fingernail names of everyday items The american english Academy of Dermatology ( AAD ) says that a fingernail takes around six months to grow from al-qaeda to tip and that toenails can take up to a year to do the same. But there are some factors that make nails grow faster. According to the AAD, fingernails grow faster on your dominant hand, a well as on your bigger fingers. They besides grow faster during the day and during the summer months .


You are importantly more probable to die on your birthday than on any other day of the year .

Older man celebrating his 70th birthday looking confused or sad According to a 2012 study published in the daybook Annals of Epidemiology, humans are 13.8 percentage more likely to die on their birthday than on any other day. The report, based on swiss mortality statistics from 1969 to 2008, found that the deaths were primarily due to heart and brain diseases, suicide, and black accidents .


The average adult spends more time on the toilet than they do exercising .

Person opening the door to the bathroom It can be hard to fit a exercise into your daily act. But of run, you ca n’t truly deny your regular necessitate to do your clientele in the toilet. That ‘s why, according to a 2017 study by british non-profit UKActive, adults spend an average of 3 hours and 9 minutes on the gutter each week, compared to around 1 hour and 30 minutes being physically active during that same time straddle .


Chewing gum sharpens your focus .

Black man putting chewing gum in his mouth Want to feel more focused at workplace ? Pop a piece of gumwood into your mouth. One 2012 report published in the journal Nutritional Neuroscience found that, when chewing gum tree, people became more alert. That ‘s because the brain associates chewing with nutrients and food and primes itself to be at utmost levels of alertness anytime there is mouth movement .


dilatoriness and impulsivity are inherited behaviors .

Indian woman staring into space distracted at work If you find yourself constantly putting off your responsibilities, you might be able to blame your parents. Though procrastination may seem like a develop trait, it turns out that it ‘s actually inherited. A 2014 study published in the journal Psychological Science found that the same genes that can lead to procrastination besides cause impulsivity, which makes sense when you think of how driving demeanor is often the driving storm behind procrastination. ( “ I could do that, but right this very minute, I feel like doing something else. ” )


Taking pictures messes with your memory .

Blur portrait of blissful young people posing with balloons at birthday party with hands holding phone on foreground. Man taking photo of friends celebrating something and using smartpone. - Image The following time you ‘re on vacation, put down the camera and cherish the moment rather. differently, you ‘re probable to forget it. One 2018 study published in the Journal of Applied Research in Memory and Cognition tested the effects of photo-taking on memory by asking students to remember a series of paintings in three situations : with no camera, with a television camera, and with a Snapchat-like app where photograph vanish. Researchers found that those who took pictures always had a unvoiced time remembering the details of the paint, careless of whether the photograph was permanently stored .


physically active fraught women have smart babies .

Pregnant women working out on balls at the gym news is largely ancestral. however, if you want to better your chances of having a smart child, staying fit and active might help. A 2013 report published in the Journal of Clinical and Experimental Neuropsychology found that fraught women who exercised three times a workweek for 20-minute intervals improved their child ‘s genius function and development .


Reading a palpable reserve promotes better comprehension than reading on a sieve .

senior Chinese man holding a book and looking at camera. When you want to start a new novel, put down your Kindle or earphone and pick up an actual book rather. A 2016 study from Dartmouth College compared the inclusion levels of students who did their read via physical print-outs to students who used digital devices. They found that abstract concepts were easier to understand when read on wallpaper. Students using only screens to learn had a much harder time grasping building complex ideas.


Oatmeal helps fight depression .

eating healthy food all the time doesn't work for weight loss People experiencing depressive disorder and insomnia ( or both, as they ‘re often linked ) have a miss of serotonin, a hormone synthesized from the amino acid tryptophan. so, eating foods senior high school in tryptophan—like oatmeal, eggs, chicken, and peanuts—can help regulate temper and rest, according to a 2016 study published in the journal Nutrients .


And therefore does coffee !

Red-haired woman smiling and drinking coffee caffeine can actually help you ward off depression, besides. A 2016 meta-study on the relationship between coffee bean and depression published in the Australian and New Zealand Journal of Psychiatry found that each cup of caffeinated coffee bean consumed per day decreased a person ‘s risk of depression by 8 percentage .


Bananas can boost your climate, besides .

Black man eating a banana outside The adjacent fourth dimension you ‘re feeling down, reach for a banana. Bananas are not entirely a healthy nosh, but they ‘re besides a glad one. The pulp of the fruit contains up to 10 magnesium of dopamine, according to 2000 research published in the Journal of Agricultural and Food Chemistry. ( The peel off contains even more, but we do n’t recommend eating that separate ! )


Consuming hot liquids can cool you down .

Black woman sipping on tea or coffee It may sound counterintuitive, but drinking hot tea or coffee bean can actually help cool you down on a hot day. That ‘s because of increase perspiration, according to a 2012 study published in the daybook Acta Physiologica. As your sweat evaporates, you wind up feeling cool than you did at first sip .
“ What we found is that when you ingest a hot beverage, you actually have a disproportionate increase in the come that you sweat, ” study writer Ollie Jay  told Smithsonian magazine. “ Yes, the hot drink is hotter than your body temperature, so you are adding heat to the body, but the sum that you increase your sweating by—if that can all evaporate—more than compensates for the add heat to the consistency from the fluid. ”


stress heightens allergies .

why we sneeze tension and allergies do not mix well. In fact, stress can make allergy symptoms worse. In a 2009 survey published in the journal Psychoneuroendocrinology, subjects with hay fever had importantly more austere cutaneous allergic reactions in nerve-racking situations compared to non-stressful situations. During the nerve-racking scenarios, subjects had higher levels of IL-6, an interleukin that is part of the incendiary allergic response to an allergen .


Exercising when you ‘re young slows bone deterioration in old age .

Father teaching his son to ride a bike Though exercise is crucial to healthy body function at all ages, it is particularly important when you ‘re young. In fact, skill has found that being active as a child and young adult can help you stay stronger later in biography. According to a 2014 learn published in the scandinavian Journal of Medicine & Science in Sports, exercising during childhood helps fortify bones and prepare them for the wear-and-tear that comes with aging. Though osteoporosis and the loss of bone mass happens to all of us as we mature, a history of exercise ensures that you stay stronger for longer .


Eating cocoa can make your bark attend healthy .

Woman enjoying a chocolate bar good news program, cocoa fiends ! You can think of that night chocolate bar as a skin treatment and as a delectable nosh. According to a 2014 discipline published in Nutrition Journal, colored chocolate has many beauty benefits, including the ability to reverse sun damage and prevent wrinkles. That ‘s because antioxidants in colored cocoa called flavanols promote the production of collagen, thereby improving skin elasticity and moisture .


And people who eat chocolate on a near-daily basis are thin than those who do n’t .

Older Woman Eating a Bar of Chocolate, ways to feel amazing As if treating your skin was n’t enough of an apology to eat cocoa day by day, a 2012 fleshiness study published in JAMA Internal Medicine found that people who consume chocolate more frequently tend to be thin. The results were reproducible, regardless of the type of chocolate consumed. Those who ate any kind of chocolate at least five times a week were statistically thinner than the rest of the subjects. Woo-hoo !


Basking in the good morning sunday helps with weight passing .

Elderly couple walking outside in the morning sunshine In accession to that fun-size Snickers nosh, spending your mornings in the sun should be a partially of your weight loss plan. A 2014 study published in the journal PLOS One found that exposure to good morning sunlight has a positive effect on body mass index ( BMI ) .
According to the inquiry, just 20 to 30 minutes of natural light in the morning—even on a not-so-sunny day—is enough to impact BMI. Without sufficient sparkle, the body may have disturb regulating metamorphosis, which can finally cause weight reach .


Massaging your scars will help them fade .

woman in white t-shirt has back facing to camera and is massaging lower back Most drugstores have over-the-counter creams and oils that are made to fade scars. however, there ‘s another evenly effective rectify that does n’t cost a thing : massage or rubbing the scarred area. Yes, rubbing your scars a few times a day can prevent overindulgence collagen buildup, which is what makes scars thick and ropey. In an article for Verywell Health, physical therapist Brett Sears suggests using “ one or two fingers to massage your scratch in a direction that is plumb line to the line of the scratch, ” which “ helps to remodel the scar and ensures that the collagen fibers of the scratch are aligned properly. ”


And fish skin can be used to heal burns .

Raw sea bass over ice In Brazil, doctors use tilapia hide to bandage and treat second- and third-degree burns. According to an probe by PBS News Hour, the pisces skin reportedly cuts down on curative time, reduces the indigence for pain medication, and helps with scar, all due to an abundant amount of collagen proteins. In 2016, scientists from Nanyang Technological University in Singapore besides discovered that, in general, fish scale-derived collagen can help heal wounds .


Playing electronic music can help keep mosquitos at bay .

Mosquito on someone's hand You ‘re probably not surprised to hear that playing electronic dance music ( EDM ) can scare people away—but as it turns out, it can do the same with mosquito. In a 2019 discipline in Acta Tropica, researchers played the Skrillex sung “ chilling Monsters and Nice Sprites ” —which combines “ very high and very low frequencies ” with “ excessive volume and constantly escalating pitch ” —and it discouraged yellow fever mosquito from biting victims and from mating .


ferment stress can contribute to your type 2 diabetes gamble .

Man stressed at his desk at work potentially a construction manager Stressed at work ? You may want to get your blood sugar levels checked. According to a 2014 study in the journal Diabetes Care, job tense is a gamble component for type 2 diabetes, independent of other life style factors. “ An association between job tenor and diabetes is biologically plausible because tension response increases secretion of the fight-or-flight hormone hydrocortisone, ” the sketch authors noted .


Owning a frank can lower your risk of heart disease .

young girl blowing in french bulldog's face high levels of chronic tension are a head cause of heart disease. But you know what helps decrease stress ? Having a andiron ! According to the American Heart Association, dog owners typically have lower blood pressure and cholesterol levels, both of which decrease your risk of cardiovascular disease. therefore if your life is impacted by stress, you might want to consider adopting a canine ally .


Ginger can help reduce cramps and bloat .

Ginger root Ginger has been used for centuries as a remedy for everything from indigestion to bloat. According to a 2016 newspaper published in Integrative Medicine Insights, compounds in the implant, like gingerols and shogaols, aid in digestion and induce intestine movements. It ‘s even helpful for women on their periods : According to 2015 research published in the journal Pain Medicine, ginger is an effective rectify for menstrual cramps .


You could be consuming 46 concealed teaspoons of sugar a day .

close up of cola being poured into glass filled with ice The American Heart Association recommends that women eat no more than 6 tablespoons of sugar per day and men eat no more than 9 per day. And so far, a 2010 study from Emory University found that Americans take in anywhere from 3 teaspoons to 46 teaspoons of lend sugar per day. What ‘s more, the average person consumed 15.8 percentage of their daily calories from lend sugars, which lurk in everything from carbonate drinks to tomato sauces .


Humans consume 600 more calories a day now than they did in the ’70s .

Girl holding a fast food burger in the car When we look back on the portraits of past generations, it ‘s pass that Americans have, on modal, catch bigger. And while this is probably due in part to the rise of fast food, hormones in kernel and dairy products, and the streamline of physical labor, it besides comes down to a stagger increase in the number of calories we ‘re consuming. According to the U.S. Department of Health and Human Services, the average day by day calories consumed increased by approximately 600 calories from 1970 to 2008 .


It takes about two days for the human body to pass a Lego .

Albuquerque, USA - December 5, 2011: Colorful, old lego bloks on a pile. Studio shot. Lego, consists of colorful interlocking plastic bricks and an accompanying array of gears, minifigures and various other parts. Lego bricks can be assembled and connected in many ways, to construct such objects as vehicles, buildings, and even working robots. Anything constructed can then be taken apart again, and the pieces used to make other objects. The toys were originally designed in the 1940s in Denmark and have achieved an international appeal. You know it hurts to step on a Lego brick, but have you ever wondered what happens when you swallow one ? In a 2018 study published in the Journal of Pediatrics and Child Health, six volunteers decided to find out by ingesting a Lego figurine head ( a musical composition that is a lot libertine and presumably much easier on the digestive system than a rectangular one ). Based on the results, the researchers determined that it takes an average of 1.71 days for a Lego to pass through the homo body .


You can tell if person has high cholesterol based on their skin .

closeup on face of woman with high cholesterol has xanthelasma on eye Most people know that high cholesterol can lead to dangerous conditions like center attack and affection disease. What ‘s less well-known is that high cholesterol can manifest itself on your skin, besides. According to the american english Osteopathic College of Dermatology ( AOCD ), spotty yellow patches called xanthelasma can appear on the eyelid and around the eyes as a resultant role of overproduction of cholesterol .


Taking an antihistamine before bed can eliminate under-eye circles .

Person taking medicine or a pill before bed generally, dark circles under your eyes can be avoided if you eat well, sleep well, and drink a batch of water system. however, these things are n’t going to help if the campaign of your under-eye bags are allergies, which the Mayo Clinic notes can be an emergence. Seasonal factors—along with bedroom irritants like dust—can be a trouble, so you should try taking an antihistamine before bed. Because anti-allergy medicine frequently causes sleepiness, you ‘ll nod off firm as a bonus .


Both depression and anxiety can cause neck and shoulder issues .

man with neck and back pain, signs your cold is serious physical pain is n’t constantly the consequence of a physical injury. In fact, if you ‘re experiencing chronic neck and shoulder pain, it could be due to something you ‘re dealing with mentally. As one 2009 review published in BMC Musculoskeletal Disorders notes, low and anxiety are both “ importantly linked with increasing levels of neck pain. ” Since tension causes the muscles to tense up, mental health issues frequently result in this type of pain .


Doctors can now 3D print a mini human heart .

3d printed human heart In Sept. 2019, BIOLIFE4D became the first U.S. party to 3D print a mini homo heart with the exact structure of a full-sized center and many of the like functions. It ‘s a major milestone toward the caller ‘s ultimate aim : 3D-printing full-sized human hearts that can be used by surgeons in transplants and by pharmaceutical companies for safe, faster testing of new cardiac therapies .


Eggshells are being used to grow human bones .

cracked eggs on a table, weird state records Chicken eggshells are largely made up of calcium carbonate, a substance that besides exists in human bones. That ‘s why researchers at the University of Massachusetts, Lowell believe that eggs are ideal for growing new bone for humans .
“ There is a capital need for developing new and functional materials to repair and regenerate damaged bone, ” lead researcher Gulden Camci-Unal  order Smithsonian magazine in 2019. “ At our lab, we like to take unconventional approaches ; we look at nature and try to see what we can use that already exists. ”


Saying thank you measurably improves your mood .

senior woman hugging younger woman Expressing gratitude may be the key to happiness, according to a 2003 report published in the Journal of Personality and Social Psychology. Researchers reported that by being grateful, you recognize the good in your life, which is all-important in overcoming depression. In fact, in their 2007 follow-up reserve on the subject titled Thanks ! : How the New Science of Gratitude Can Make You Happier, the scientists note that “ regular grateful think can increase happiness by adenine much as 25 percentage. ”
extra report by Morgan Greenwald.

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