Daily back pain usually has a fixable cause. Learn what's likely behind yours and what actually helps, from posture and sleep to therapy and warning signs.
Diarrhea can be a useful defense against harmful pathogens, but it also depletes fluids and disrupts gut bacteria. Here's what the science actually says.
Alpha-1 antitrypsin deficiency is inherited, but what that means for your health depends on which gene variants you carry — including if you're just a carrier.