ScienceInsights

Intrusive thoughts are normal, but they can feel alarming. Learn what they are, why your brain produces them, and when it's worth seeking help.

Herpes is common, often symptomless, and spreads in ways many people don't expect. Here's what the science actually says.

A .13 BAC means significant impairment—here's what that feels like, how you get there, and why driving at this level is both dangerous and illegal.

Late period? Learn what actually works to help your cycle along, what's just a myth, and when to check in with your doctor.

71 BPM sits comfortably in the normal range for most adults, but age, fitness level, and daily habits all play a role in what's healthy for you.

Learn which blood tests diagnose diabetes, how each one works, and when you should get tested based on your age and risk factors.

Learn how different types of arthritis develop in the body and why joint damage tends to progress over time.

B vitamins, iron, magnesium, and vitamin D all play real roles in energy production. Learn which ones matter most if you're dealing with fatigue.

Chlamydia often causes no symptoms in women, making it easy to miss. Learn how it spreads, when to get tested, and why treatment matters.

Dog skin allergies can stem from fleas, food, pollen, and more. Learn what triggers them and how vets figure out the cause.