ScienceInsights

A hard mole isn't always cause for concern, but it's worth knowing what causes firmness and when to get it checked by a doctor.

Mexico's obesity rates stem from sugary drinks, ultra-processed foods, genetic factors, and poverty. Here's what the science says and what's being done.

Cravings are driven by biology, not willpower. Learn practical habits like more protein, better sleep, and hydration that make them easier to manage.

Some types of pneumonia spread easily, others don't. Learn which kinds are contagious, how long you stay contagious, and how to protect yourself.

Full body aches can stem from infections, poor sleep, vitamin deficiencies, or chronic conditions. Learn what's likely causing yours and when to see a doctor.

Learn how long you can safely wear a tampon, why 8 hours is the recommended limit, and how to lower your risk of infection.

Lightheadedness has many causes, from standing up quickly to dehydration. Learn what's behind that dizzy feeling and when it's worth talking to a doctor.

Bloating isn't just a full feeling. Learn what's actually happening in your body and how to recognize it versus other types of discomfort.

Alzheimer's care often involves several specialists. Learn which doctors diagnose and treat the condition and how they work together to support patients.