The peaceful rhythm of parenthood shifts dramatically when a 9-month-old wakes up in the middle of the night with a distinctive barking cough that sounds like a seal. For parents navigating their ...

The number doctors use to demarcate hypertension keeps going down, a trend applauded by many experts, who point to studies ...

Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that ...

Bathing in a hot sauna causes a temporary rise and then fall in cortisol levels. Learn how sauna use impacts levels of this ...

Could hyperbaric oxygen treat PTSD, depression, and anxiety? New evidence suggests that this treatment may rewire the brain—and the results are hard to ignore.

Sanjay Bhojraj, a cardiologist who has spent 20 years treating heart attacks, shares evening habits that influence heart health. Here are the routines that can improve blood pressure, glucose control, ...

Have you ever noticed that when you take a fitness test, your individual scores are much better than your scores when tested ...

If you get a high reading at the doctor's office, it may not be definitive. Here's what to know about your risk — and testing ...

Learn what vitamin B6 does in your body, including benefits for brain health, energy, immunity, heart health. Plus, the best food sources of this essential nutrient.