ScienceInsights

Memantine is approved for moderate to severe dementia, not mild. Learn how it works, what it can realistically do, and how it's used alongside other treatments.

Mood swings can be an early sign of pregnancy, but how do you tell them apart from PMS? Learn what's normal and when to take a test.

ACL recovery typically takes 9–12 months. Here's what's actually happening in your knee at each stage and what affects your timeline.

Ankle sprains range from mild to severe, and recovery has changed. Learn what's actually happening inside your joint and how to heal it properly.

Foot blisters form when friction separates skin layers, but moisture, socks, and medical conditions play a role too. Here's how to prevent them.

Increased vaginal discharge is often normal, but changes in color, smell, or texture can signal an infection or irritation worth checking out.

A 1000 mg dose of Tylenol typically provides 4–6 hours of pain relief for adults. Here's what affects how long it lasts and how to use it safely.

Dry scalp is treatable with the right habits. Learn how washing frequency, water temperature, and moisturizing can bring lasting relief.

Many STIs cause no symptoms at all. Learn which signs to watch for, when to get tested after exposure, and what testing actually involves.

Cold sores typically take 8–10 days to run their course. Learn the stages, when symptoms first appear, and how early treatment can shorten that timeline.