Biology Insights

Levothyroxine is generally safe, but it can cause side effects ranging from heart palpitations to bone loss. Here's what to watch for and when to call your doctor.

COVID symptoms typically clear in a few days to two weeks, but for some people they linger much longer. Here's what shapes your recovery timeline.

Paget's disease of the breast can look like eczema, which often delays diagnosis. Learn how it's identified, treated, and what outcomes typically look like.

Severe tooth pain has real biological reasons behind it. Learn what's likely causing yours and how to get relief until you can see a dentist.

Art therapy involves guided creative activities like drawing and collage that help process emotions, reduce stress, and support mental health with a trained therapist.

Health organizations recommend breastfeeding for at least six months, but what does that mean in practice? Here's what the guidelines say and why.

Most people don't rely on just one source to cover nursing home costs. Here's how Medicare, Medicaid, insurance, and other options typically work together.

Practical lifestyle changes—like the DASH diet, regular exercise, and better sleep—can meaningfully lower high blood pressure without medication.

From first trimester fatigue to third trimester pressure, here's what pregnancy actually feels like physically and emotionally along the way.

At 10 months, babies are ready for more variety. Learn which foods to offer, how much milk they still need, and what to avoid before 12 months.

Stopping sertraline can cause physical and emotional symptoms. Learn why they happen, how long they last, and how to taper safely with your doctor's help.

Implantation typically happens 6–12 days after sex. Learn what affects the timing and when you can actually take a pregnancy test.

Your brain may have learned to see someone as a threat. Here's the science behind person-specific anxiety and how to address it.

Avocados do contain protein and all essential amino acids, though not in large amounts. Here's what you can realistically expect from a serving.

Vertigo treatment depends on the cause. Learn how BPPV, Ménière's disease, and other conditions are treated, from simple repositioning to rehab.

Low blood pressure is common in pregnancy but can affect you and your baby. Learn what causes it, how it feels, and when to seek medical care.

Peer support specialists draw on lived experience to help others recover, but their role differs from therapy in important ways. Here's what each offers.

1,000 IU of vitamin D is well below the safe upper limit for most adults, but your ideal dose may depend on age, health, and sun exposure.