What does science say about whether lactic acid is indeed the culprit in muscle fatigue and what’s known as delayed onset muscle soreness?
Among the many things parents hand down to their children are 23 pairs of chromosomes – those thread-like structures in the nucleus of every cell containing the genetic instructions for every person. Here’s a look at the Y chromosome and the role it plays in deciphering ancestry.
Spicy food contains chemicals that trick the body into cranking up its internal air-conditioning system, triggering responses from head to toe and involving everything from the respiratory to the circulatory system.
When we sustain a cut or injury, more than a dozen clotting factors, or special proteins circulating in the body, are activated in a cascade to help us stop bleeding. “People born with the genetic disorder hemophilia have insufficient levels of one of these clotting factors, so they bleed for a...
A holdover from our prehistoric days, goosebumps are the end result of an adrenaline rush meant to ward off a big chill — or predators.
Now a growing area of research, aided by advances in human genome sequencing technology, shows that genetics plays an important role in the immune system’s ability to fight off foreign invaders.
Meant to remove invaders, either infectious or simply irritating, a scratch is human skin’s first line of defense.
Once one of the world’s deadliest diseases, smallpox’s complete eradication was the result of a worldwide deployment of a vaccine begun 50 years ago. To date it’s still the only human disease ever to disappear from Earth. ...
It’s an everyday occurrence. A little tickle in your throat, a wayward speck of pollen, perhaps — or a bit of water traveling down the wrong pipe — and then a full-on chain reaction in your body. ...