The skin is the body's largest organ and helps protect internal organs from harm. Hair helps protect the skin, regulates body temperature, and is part of the body's sensory system. Sweat glands help ...

There is an undeniable connection between a strong immune system and nutrition. Learn why what you eat matters and other ways to boost your immune system.

For centuries, scientists have known that plants "breathe" through microscopic pores on their leaves called stomata. These ...

It's true that vitamin C can give your immune system a boost, but when it comes to treating or preventing colds, things get a ...

As we age, our immune system quietly loses its edge, and scientists have uncovered a surprising reason why. A protein called ...

It is cold season. A homonym if there ever was one. As I cannot control the temperature, allow me to give you some advice on ...

Northwestern University scientists have uncovered a hidden molecular "control switch" inside a protein that helps the body ...

This comprehensive review synthesizes a decade of human and animal research to explain how the gut and brain communicate ...

Although constipation and diarrhea may seem like opposite problems, they both hinge on the same underlying issue: how much fluid moves into the gut. These common issues affect millions of people in ...

“Getting adequate rest may strengthen your body’s natural immunity,” Cherian says. When you don’t get enough sleep, your immune system may not function as well, making it less able to defend your body ...

In the United States, flu season typically lasts from October to May. The flu virus affects people of all ages each year, and symptoms include coughing, runny nose, fever, chills, body aches, and ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Michael Boyle is an experienced financial professional with more than 10 years working with ...