Biology Insights

Cholera is still active in dozens of countries today. Learn where it spreads, why cases are rising, and how to stay protected if you're traveling.

From lifestyle changes like exercise and diet to prescription options, here's what actually helps improve erectile function.

PANDAS remains a debated diagnosis in medicine. Here's what current research says about its causes, symptoms, and treatment options.

Blocked sinuses got you down? Saline rinses, steam, massage, and the right sprays can all help you breathe easier — here's how to use them.

Sore throats are usually minor, but knowing the cause helps you treat it right and spot the signs that mean it's time to see a doctor.

Chicken Marsala can be a solid, protein-rich meal—here's what's in it nutritionally and a few easy ways to keep it lighter.

Herpes spreads through skin-to-skin contact, even without visible sores. Learn the real transmission routes, what doesn't spread it, and how to reduce your risk.

Folate is water soluble, which affects how your body absorbs it, how cooking depletes it, and why it behaves differently from fat-soluble vitamins.

Learn how RSV spreads and how to protect yourself and your family through simple daily habits, vaccines, and antibody options for infants.

Dandruff is caused by a scalp fungus, not dry skin. Learn why it flares up, how to tell it apart from other conditions, and why it tends to return.

Lifestyle changes like diet, exercise, and sleep can meaningfully lower blood pressure. Here's what the evidence says actually works.

Body cramps can stem from dehydration, muscle fatigue, or even certain medications. Here's what's actually happening and how to find relief.

Learn what TRICARE covers for military families, including prescriptions, dental, vision, and maternity care, plus what it doesn't cover and what it costs.

Learn what causes a tooth abscess, from decay and gum disease to cracks, and how to tell if the infection is spreading beyond your tooth.

Emotional numbness can feel like disconnection from life itself. Learn what causes it, when it's a concern, and how to gradually reconnect with your feelings.

Diagnosing hypertension involves more than a single reading. Learn how doctors confirm high blood pressure and what tests typically follow.

Pineapple has mild diuretic properties thanks to its water content and bromelain, but it's not a strong fluid-balancing tool. Here's what the science says.

Sexuality can evolve over time. Learn how self-reflection, mindfulness, consent, and open communication can help you explore it safely and honestly.

Heartburn has many causes, from spicy foods and alcohol to sleep position and medications. Learn what triggers yours and when to see a doctor.