ScienceInsights

Fertility declines gradually with age, then more sharply after 35. Here's what the actual odds look like at each stage, from natural conception to IVF.

Learn to recognize frostnip by its skin color, texture, and sensation, and how to treat it safely before it becomes something more serious.

Ganglion cysts contain a thick, jelly-like fluid made of hyaluronic acid that leaks from nearby joints or tendons. Here's what's actually inside.

Paxil causes weight gain through appetite and metabolic changes. Learn why it happens, who's most at risk, and practical ways to manage it.

Learn what speech therapy for kids actually involves, from the first evaluation to what happens in sessions and how parents can support progress at home.

Learn what healthy blood glucose levels look like fasting, after meals, and across different life stages, plus what can shift your numbers day to day.

Learn how much milk a 5-month-old typically needs, when solids might enter the picture, and how to tell if your baby is eating enough.

Most acute sinusitis clears up in 7–10 days, but recovery varies. Learn what to expect, when antibiotics help, and when to see a doctor.

From your first smoke-free hours to years down the line, here's how your body heals when you quit smoking.

After the flu hits your home, here's how to properly clean and disinfect surfaces, bedding, and shared spaces to reduce the spread of the virus.