ScienceInsights

Heart disease doesn't always announce itself clearly. Learn which symptoms to watch for, when to seek emergency care, and which tests can catch problems early.

Most 13-year-old girls fall between 4'11" and 5'4", but puberty timing and genetics shape what's normal for each individual.

Sudden hunger spikes often come down to hormones, sleep, stress, or blood sugar. Here's what might be driving your appetite and what you can do about it.

Pain just above the buttocks often comes from the sacroiliac joint, spinal discs, or nearby nerves. Learn what's likely causing yours and when to see a doctor.

Sore throat but not sure if it's strep? Learn which symptoms point to strep, how doctors test for it, and when to seek care right away.

Twice a day is the sweet spot for brushing, but timing, technique, and toothpaste matter just as much as how often you brush.

Not losing weight despite diet and exercise? Several common factors could explain it, from water retention to underestimated portions and sleep habits.

Losing your mucus plug is a normal part of late pregnancy. Learn what it looks like, how it differs from bloody show, and what it means for labor timing.

BlueChew delivers chewable sildenafil or tadalafil tablets for ED. Learn how these medications work, their side effects, and who they're suitable for.

Narcolepsy involves more than just daytime sleepiness. Learn the five key signs, including cataplexy and sleep paralysis, and how they connect.