The Metropolitan Nashville Airport Authority’s board voted unanimously to rename Nashville International Airport after Dolly Parton, though says the vote was just the “first step in a multifaceted ...

Cortisol is a hormone produced by the hypothalamic pituitary adrenal (HPA) axis that regulates your sleep-wake cycle and stress response. It peaks about an hour after you wake up and drops to its ...

Holly Klamer MS, RDN, is a registered dietitian-nutritionist with master's degrees in nutrition and exercise science. As Health's former nutrition editor, she kept track of supplement trends and ...