Biology Insights

A breakdown of the materials used to make condoms—latex, polyurethane, polyisoprene, and lambskin—and how each affects protection and compatibility.

Medical and psychological organizations no longer classify being transgender as a mental illness. Here's what the current science and research actually show.

Learn what causes an irregular heartbeat, how it feels, and when it needs treatment versus when it's nothing to worry about.

Learn how trichomoniasis is diagnosed, from highly accurate NAAT tests to home testing options, and what your results mean for treatment.

Anxiety shows up in more ways than worry alone. Learn how it affects your body, sleep, gut, and behavior—and what sets it apart from other conditions.

A practical walkthrough on using an insulin pen safely, from checking your insulin and priming the pen to injecting and disposing of needles properly.

Learn how to manage baby vomiting at home, keep your little one hydrated, and recognize the warning signs that mean it's time to call a doctor.

Breast hickeys are generally harmless bruises, but here's what the science says and which symptoms are worth checking out.

Lentils offer real nutritional value — from fiber and plant protein to heart and gut health benefits. Here's what the science actually says.

Learn what a T3 blood test measures, why doctors order it, and what high or low results mean for your thyroid health.

Greek yogurt can be a good source of probiotics, but not all brands qualify. Here's what the science says about the bacteria, your gut, and what to look for.

A whole avocado has around 975mg of potassium — here's how that compares to your daily needs and other potassium-rich foods.

Learn why women are more prone to UTIs, what causes them to keep coming back, and how factors like hormones, habits, and bacteria play a role.

Antiviral medications, home remedies, and daily suppressive therapy can help manage genital herpes outbreaks and reduce transmission risk.

Learn how to apply adapalene gel safely, manage dryness and purging, and build a skincare routine that gets the most from this retinoid.

Feeling tired? B vitamins, vitamin D, and magnesium play real roles in energy production. Learn which nutrients help with fatigue and who actually benefits.

Groin injuries range from mild muscle strains to tears needing surgery. Learn what causes them, how they're diagnosed, and how long recovery typically takes.