A reactivation of the virus that causes chickenpox, the illness can be miserable. Here's what to know about early warning signs, long-term symptoms and some surprising news about the vaccine.

Higher education is especially reliant on computers and phones, but accessibility for people with disabilities has often been forgotten. A new federal rule could change that.

The American Heart Association is releasing dietary guidelines on the heels of confusing guidelines announced by the federal government.

Caregiving for an adult can be a big responsibility. After caring for her mother through cancer, Amanda Cruz learned it can transform your sense of self.

NPR Global Health and Development Correspondent Fatma Tanis talks about digging into the impact of billions of dollars of US aid being cut from programs around the world.

"Pain is a mysterious thing," says neurosurgeon Dr. Sanjay Gupta. But understanding how it works in the body and different kinds of treatment can help you find the right pain relief when you need it.

U.S. work combatting HIV/AIDS has saved millions of lives globally. Under the Trump administration, funding has been slow in coming and unpredictable, wreaking havoc on people trying to do the work.

There is public concern about health risks from the chemicals, especially from the Make America Healthy Again movement. The agency's move doesn't in itself guarantee regulation.

Carl Castro, a retired U.S. Army colonel, talks about the impact of the Iran war on service members, their families and veterans.

Alpha-gal syndrome used to be most prevalent in Arkansas, Kentucky and Virginia, but is now being seen in many regions, with some hotspots in the Northeast.