ScienceInsights

Sucralfate isn't an antibiotic — it's a gut-coating medication that protects ulcers from stomach acid. Here's how it works and why the confusion happens.

Prednisone calms airway inflammation during asthma flares, but repeated use carries real risks. Here's what it does, how fast it works, and what to expect.

Green poop is usually harmless and tied to diet or digestion speed. Here's what causes it and when it's worth a call to your doctor.

Learn how sugar substitutes work, which types are safe to use, and how they affect digestion, dental health, and cooking.

Learn which vagal maneuvers can stop an SVT episode, from the modified Valsalva to cold water immersion, plus what to expect if you need emergency care.

Period cramps come down to specific chemicals and muscle contractions. Here's what's actually happening in your body and why some cycles hurt more than others.

Mild aching or tingling during acupuncture is usually normal. Learn which sensations are expected and which ones are worth mentioning to your practitioner.

Healthy gums come down to daily habits. Learn how brushing technique, diet, and regular cleanings help prevent gum disease before it starts.

From zinc to saline rinses, find out which cold remedies have real evidence behind them and which ones you can skip.

A 7-inch penis is larger than average. Here's what research says about size, partner preferences, and what actually matters for sexual satisfaction.