Biology Insights

Depression isn't caused by low serotonin alone. Learn which brain chemicals, hormones, and other factors actually contribute to depression.

Urine color can reveal a lot about your hydration, diet, and health. Here's what each shade means and when it's worth calling your doctor.

Antivenom is expensive due to complex production, limited manufacturers, hospital markups, and storage waste. Here's what drives the cost and what may change.

Calcified plaque hardens your arteries over time, but the risks vary. Learn what causes it, how doctors measure it, and what treatment actually looks like.

ADHD can qualify as a disability under U.S. and UK law, but eligibility for accommodations and benefits depends on how it affects your daily life.

SSRIs boost serotonin by blocking its reabsorption, but brain adaptation explains the weeks-long wait for relief and why side effects happen.

Viagra's highest dose is 100 mg, but it's not right for everyone. Learn who qualifies and how to get the most out of your ED medication.

SPAPs are state programs that help Medicare beneficiaries cover prescription drug costs. Learn how they work, who qualifies, and how they differ from Extra Help.

Green stool is usually harmless and tied to diet or bile, but certain patterns may signal an infection or other issue worth checking out.

Flomax is commonly prescribed for BPH, but it's also used for kidney stones and in women. Learn how it works, its side effects, and its limitations.

Dry lips often come down to habits, ingredients, or health factors. Here's what's actually causing them and how to find relief.

Birthing balls can ease discomfort during pregnancy and labor. Learn how to choose the right size, useful positions, and what research says about pain relief.

Cyberbullying is on the rise and affects mental health, physical wellbeing, and academic success. Here's what drives it and why it matters.

Everlywell offers at-home lab tests you mail in yourself. Here's how the process works, what tests are available, and what to expect from your results.

Sinusitis is more than a stuffy nose. Learn what causes it, how long it lasts, and when you actually need antibiotics versus letting it run its course.

From immune support to brain health, here's what eating mushrooms actually does to your body — plus a look at psilocybin and toxic varieties.

ICD-11 is the WHO's updated system for classifying diseases worldwide, bringing clearer definitions and key changes like gaming disorder and burnout recognition.

Animal fat's effect on heart health depends on the type and source. Here's what the science actually says about eating it.