Biology Insights

Early pregnancy bleeding can have many causes, from harmless implantation spotting to conditions needing prompt care. Here's how to tell the difference.

Apple calories vary by size and variety, but they come packaged with fiber and nutrients that make them a smart choice for most eating plans.

From baking soda to antacids, learn what actually helps heartburn go away, plus the habits and triggers that keep bringing it back.

Simple, evidence-backed ways to thin and clear mucus at home, plus signs it's time to see a doctor.

50 grams of sugar sounds specific, but is it actually too much? Learn what the guidelines say and how your daily intake really stacks up.

Daily Tylenol can be safe for most people, but dose, alcohol use, and hidden acetaminophen in other medicines affect your liver risk.

Metoprolol starting doses vary by condition and formulation. Here's what the lowest doses look like for heart failure, high blood pressure, and post-heart attack care.

At 11 weeks, your baby is growing fast and your body is still adjusting. Here's what's normal for symptoms, screenings, and nutrition right now.

Fairlife's higher protein and lower sugar may support weight loss, but flavored versions can undo the benefits. Here's what to know before buying.

Low blood pressure can stem from many causes, including dehydration, medications, heart issues, and hormonal conditions. Learn what might be behind your numbers.

Pregnancy spans 40 weeks across three trimesters, each with distinct milestones for you and your baby. Here's what to expect at each stage.

Discharge can increase in early pregnancy, but it's not a reliable sign on its own. Learn what's normal, when it starts, and when to check with a doctor.

Learn what common dog worms actually look like, which ones are visible to the naked eye, and what symptoms to watch for when worms can't be seen.

2,500 mcg of biotin is unlikely to cause harm, but it can skew lab test results in ways that matter for your health.

Cellulite comes down to anatomy, hormones, and genetics — not poor habits. Here's what actually causes it and what can genuinely help.

Daily vaginal discharge is usually normal. Learn what healthy discharge looks like, how it shifts through your cycle, and when to see a doctor.

Most 5-month-olds weigh between 13–17 lbs, but healthy ranges vary. Learn what growth percentiles mean and when slow weight gain is worth discussing with your pediatrician.

Most periods last 2 to 7 days, but age, hormones, and contraceptives all play a role. Here's what's normal and when to check in with a doctor.

Visceral fat responds well to the right lifestyle changes. Here's what the evidence says actually works to reduce it.