Flu contagiousness typically lasts 5–7 days, but timing varies. Learn when you're most likely to spread the virus and when it's safe to be around others.
Painful sex has many possible causes, from dryness and infections to muscle issues and deeper conditions. Here's what might be behind it and how it's treated.
Shoulder pain while walking can stem from poor posture, arm swing habits, pinched nerves, or rarely something more serious. Here's how to tell the difference.