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Body Systems
Your body is pretty amazing. At any given point you have many biological processes going on -- circulatory, digestive, brain & central nervous systems and more. Learn about these body systems as well as the eye, ears, nose and throat.
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Do Blue Light Glasses Even Work?
Blue light glasses are super popular these days. But do they work the way marketers promise?
Aphantasia: When Your Mind's Eye Is Blank
Although the inability to picture things in your head would seem to be a hinderance, some experts say it's definitely not a creativity killer and actually can have some advantages.
What Does It Mean If Your Blood Oxygen Level Is Low?
A low oxygen level in your blood is a good indicator of a COVID-19 infection, but what exactly does that mean and how do doctors test for it?
What You Should Know About Antibody Testing
We're all hearing the words 'antibody' and 'antibody testing' way more than we ever thought we would in the normal course of a day, so what exactly are we talking about?
Cytokine Storms: When Your Immune System Defends You to Death
Cytokine storm syndrome can turn a normally functioning immune system into an enemy more dangerous than the virus it's trying to dispatch.
Farts Can Be Silent, But Can They Be Deadly, Too?
Maybe you've never even thought about it when you've smelled — or emitted — a particularly odoriferous fart. But can that fart spread disease?
Why Can't You Smell Your Own House?
You almost never notice the way your own place smells. Why is that?
The Cerebellum Is the Body's Little Brain
The cerebellum is the part of our brain that controls voluntary movements like posture, balance, coordination and speech.
Feeling Hungry? Tired? Moody? Thank Your Hypothalamus
The hypothalamus is a tiny area of your brain that keeps everything — hunger, thirst, sleep, energy, mood — in balance.
Does Oxytocin Make Us Fall in Love?
Sometimes referred to as the "cuddle hormone," oxytocin is released during sex and breastfeeding. But does it make you fall in love with someone or just bond you more with someone you already love?
Without a Hippocampus, Your Long-term Memory Is History
Located in the temporal lobe, this tiny horseshoe-shaped organ plays a massive role in both the storage of long-term memories and the creation of new ones.
5 Ways Homeostasis Keeps Your Body Humming Along
Homeostasis comes from the Greek words for "similar" and "steady" but this state of steadiness is anything but boring. In fact, it's what you want your body to be.
The Amygdala: Gatekeeper of Human Fear
The amygdala is a small part of the human brain that most humans have probably never heard of.
Toilet Stools, Like Squatty Potty, Really Get Things Moving, Study Says
A new study found that giving your feet a boost in the bathroom lessened constipation (and straining) significantly.
Don't Let Travel Impact Your Pooping Routine
Travelers commonly experience unusual bowel symptoms while traveling. Why is this, and what can we do about it?
Why Won't My Eye Stop Twitching?
The eye twitching that's driving you crazy — it's likely caused by nothing more than stress or fatigue. But you may need to see a doctor if you have other symptoms, too.
5 Things You Didn’t Know About Donating Your Brain to Science
Listed as an organ donor on your driver's license? That designation does not include your brain.
Are Flavored Vaping Liquids Safe?
Chemical flavorings interact with the solvents in vaping liquids, forming dangerous new compounds. And that's before they're even heated.
Scientists Discover Protein That Could Help Restore Hearing
For over 40 years, scientists have been searching for the protein that allows us to hear. Its recent discovery might help people regain their hearing.
Please Stop Flushing Your Contacts!
Contact lenses fragment into microplastics that slip through water filtering systems and ultimately end up in the oceans.
More Americans Than You'd Think Smell 'Phantom Odors'
About 1 in 15 Americans over 40 smell odors that aren't there, according to a new study. And the reason why is still a mystery.
Does Everyone Have the Ability to Become a Genius?
Sudden savant syndrome can make you a math whiz or musical prodigy instantaneously. But how?
Ever Stand Up and Get Dizzy?
It happens to almost everyone and there are lots of possible explanations.
Every Coffee Drinker Is Unique
What's behind the fact that you can drink three cups of coffee and still feel sleepy while your coworker feels jittery after one cup? Our bodies all process caffeine differently. Here's why.
The Man Whose Blood Saved More Than 2 Million Babies
James Harrison's blood contains a rare and powerful antibody that's saved millions of Australian babies. Now, at age 81, after donating 1,173 times, he's hoping someone else will pick up where he left off.
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