ScienceInsights

At 5 weeks pregnant, you're in your second month. Learn what's developing, what symptoms to expect, and what to focus on in early pregnancy.

Newborns sleep 14–17 hours a day, but not all at once. Here's how their sleep patterns work and what changes in the first few months.

Some memory loss can be reversed, while other types can only be slowed. Here's what current science actually knows about treatment and prevention.

Feeling nauseous or dealing with an upset stomach? Learn which foods help you recover and which ones to skip until you're feeling better.

THC can linger in your body for days or weeks depending on how often you use, your metabolism, and the type of drug test involved.

Green poop is usually harmless and linked to diet or fast digestion, but here's when it might be worth a closer look.

Sensitive teeth have specific causes, and the right treatment depends on finding yours. Learn what's behind the pain and how to actually fix it.

From pelvic floor exercises to prescription options, here's what the evidence says about lasting longer in bed and managing premature ejaculation.

An 80/50 blood pressure reading is low, but whether it's a problem depends on your symptoms and health history. Learn when to seek care.

Oral antivirals work fastest on cold sores, especially when taken at the first tingle. Here's what actually speeds healing and what gets in the way.