ScienceInsights

Most 11-year-olds need 9 to 12 hours of sleep, but puberty and screens can make that harder to get. Here's what to know and how to help.

Most human pain medications are harmful or toxic to dogs. Learn which ones to avoid and what to do if your dog accidentally ingests one.

Cottage cheese is nutritious, but sodium adds up fast. Here's how much works for your goals, digestion, and overall diet.

Red Bull typically kicks in within 15–45 minutes and lasts 3–5 hours, though caffeine sensitivity and food intake can shift that timeline.

Ipratropium bromide nasal spray treats runny noses, not congestion. Learn how it works, how fast it acts, and how it differs from other nasal sprays.

BPD involves more than mood swings. Learn about the core symptoms, how they show up differently in people, and what a diagnosis actually looks like.

Fluid on the knee looks and feels different depending on the cause. Learn what swelling, puffiness, and fullness actually mean for your joint health.

Early signs of Parkinson's dementia often include subtle thinking changes, mood shifts, and sleep problems before memory loss becomes noticeable.

Pooping once a day isn't the rule — most people fall somewhere between 3 times a day and 3 times a week, and that's perfectly normal.