The human body is an amazing structure made up of many fascinating parts and systems. Learn about the human body and how its systems work together.
No One Can Live Without a Mesentery, But What Does It Do?
Many Animals Have a Cloaca, But Humans Should Not
What's the Difference Between the Fibula and Tibia?
Do You Have One of the 6 Rarest Eye Colors in the World?
What Happens When the Wind Is Knocked Out of You?
What Is Saliva and How Does It Change the Taste of Food?
All eye colors are an interaction of brown pigment and light, but some eye colors occur much less often than others. Here are the six you'll see the least.
Saliva is not exactly the most appetizing of subjects, but it plays an important role in everything from how food tastes to how it is digested.
The presence of a protein called Piezo1 plays a key role in how tendons heal – and a genetic mutation in that protein may also enhance athletic performance and keep us moving around longer and better.
Surely you've had a knot in your neck at some point. But your muscles really aren't tied in knots. Or are they?
Having kidney stones can feel like you've been stabbed in the back. But is it the stones causing the searing pain or is it something else?
By Dave Roos
We've all heard of the brain's gray matter, but what about the white matter? What does it do?
In 2017, scientists discovered the 79th organ of the body. What took them so long and what does it do?
By Alia Hoyt
The director of the Aphasia Research Laboratory at Boston University explains the condition forcing Bruce Willis to retire from acting, including what treatment options could be available.
By Swathi Kiran
Maybe you've seen those fantastical stories saying the world's longest piece of poop is 26 feet? Is that even possible? Where does crap like this come from?
By Alia Hoyt
Many things play a role in how our bodies acclimate to super-cold temperatures, including our own habits, genetics and even brown fat.
Knowing your eye shape can help with everything from selecting eyeglass frames to shaping the perfect brow.
Stanford researchers have developed a new white cane, incorporating sensing and wayfinding approaches from robotics and self-driving vehicles. Could this new white cane reshape life for the visually impaired?
Parosmia is a post-COVID-19 side effect that distorts your sense of taste and smell. But smell training (you read that right) can help most people get things back on track.
Technology for hearing aids has advanced drastically since our grandparents wore those big, bulky ones wrapped around their ears. Now they're Bluetooth-enabled and can even translate foreign languages on the fly.
Savant syndrome is a rare condition in which someone with significant mental disabilities demonstrates certain unexplained extraordinary abilities, such as playing music or remembering prodigious amounts of information.
Proprioception refers to our ability to perceive our body's position and how we move through space. It's often considered our sixth sense because we do it without thinking about it.