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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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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.

Do Blue Light-blocking Glasses Even Work?

Blue light-blocking glasses are super popular these days. But do they even work the way marketers promise?

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.

This Year's Must-have for Music Festival Season: Ear Plugs

Music festivals are a blast, but research shows they can also be a bummer for your ears. One study even says that alcohol, coupled with loud music, can make the hearing loss worse.

A Compendium of Fart Facts, Plus One Gaseous Podcast

Enter the Fartonomicon with the guys from Stuff to Blow Your Mind. You're guaranteed to have a gas.

How Long Does LASIK Last?

You had LASIK surgery a few years ago, and your vision has started to blur again. Is this normal?

Take Care of Those Hammies

Hamstrings are a group of three muscles running down the back of the thigh, and they have a lot to do with your flexibility.

When Sound Makes You Sick

Diplomatic staffers in Havana, Cuba, recently began to suffer from a series of health problems. Were they sound-related?

Holding Hands Can Ease Pain

Holding hands can help regulate responses to stress, increasing trust and emotional well-being.

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