Biology Insights

Sickle cell anemia can now be cured, but bone marrow transplants and gene therapies come with major eligibility hurdles and costs that limit who can access them.

Dental crowns typically cost $500–$2,500 without insurance. See what affects the price and how to make it more affordable.

Oxycodone and hydrocodone are both opioid painkillers, but they differ in strength, how the body processes them, and when doctors choose one over the other.

You may feel better in a day, but a stomach bug can still be contagious for up to two weeks. Here's what you need to know to avoid spreading it.

A metallic taste in your mouth can signal low zinc, B12, or iron levels. Here's how to tell which deficiency might be behind it and what to do next.

Tardive dyskinesia causes involuntary movements in people taking certain medications. Learn what's happening in the brain, who's at risk, and whether it can be reversed.

Feeling too high? Learn practical, science-backed ways to ease the experience, from CBD and black pepper to grounding techniques and the right foods.

Find out when to take a pregnancy test for the most accurate result, including tips on timing, test types, and what can affect readings.

Most people are contagious with the flu for about 5–7 days, but kids and those with weakened immune systems can spread it longer. Here's what to know.

Learn the key warning signs of bladder cancer, including blood in urine and pelvic pain, and why they're often easy to overlook.

Learn when hormonal birth control becomes effective enough to rely on without condoms, and what factors like timing and missed doses can affect that window.

High blood pressure rarely has a single cause. Learn about the 10 common factors that raise blood pressure, from diet and stress to genetics and sleep apnea.

An itchy left palm might be folklore, but it can also signal eczema, nerve issues, or liver conditions. Here's how to tell the difference.

Learn what counts as a fever, how to take your temperature correctly, and when it's time to call a doctor.

Buspirone can take 2–6 weeks to reduce anxiety. Here's what's happening in your body each week and how to know if it's working.

Amox-clav 875-125 mg is a broad-spectrum antibiotic. Learn what makes it more effective than plain amoxicillin and which infections it's used to treat.

Ease sore throat pain with remedies that actually work, plus signs it could be strep and when to see a doctor.

Most adults can take up to 4,000 mg of Tylenol daily, but certain factors lower that limit. Here's how to dose safely and avoid accidental overdose.