DEAR MAYO CLINIC: My grandmother lives with me, and she is always nagging me to "stand up straight" and "put your shoulders back." She says good posture will keep me healthy as I age. But I'm only 17.

DEAR MAYO CLINIC: My grandmother lives with me, and she is always nagging me to “stand up straight” and “put your shoulders back.” She says good posture will keep me healthy as I age. But I’m only 17.

DEAR MAYO CLINIC: My grandmother lives with me, and she is always nagging me to “stand up straight” and “put your shoulders back.” She says good posture will keep me healthy as I age. But I’m only 17.

Planking — a full-body exercise focusing mainly on the core — is one that everyone from fitness newbies to gurus loves to hate. Planks have also become a viral trend, hitting social media platforms ...

A feel-good habit with so many perks.

(CNN) — Health experts universally recommend walking as one of the simplest, most accessible forms of exercise — and for good reason. However, many people move through their daily walks on autopilot — ...