Should it survive that odyssey and land in a new tissue—say, the brain or spinal fluid—the environment is totally different yet again. The foods the cell is accustomed to may be absent ...

Commentary: Sofwave brands itself as a skin-firming, jowl-tightening, noninvasive procedure. I took it for a spin.

Learn more› By Caira Blackwell and Nancy Redd We’ve added two picks to this guide: Solimo Sheer Face Sunscreen SPF 30, a chemical sunscreen, and Vanicream Facial Moisturizer with SPF 30 ...