ScienceInsights

Time in range shows how long blood sugar stays in a healthy zone—and research suggests it may predict diabetes complications better than A1c alone.

UTI symptoms can vary more than you'd expect. Learn what changes in urine, smell, and sensation actually signal an infection — and when it might be something else.

Oversleeping can signal health issues or lifestyle habits worth addressing. Learn what causes it and practical ways to feel more rested with less time in bed.

Normal body temperature varies more than you'd think. Learn what actually counts as a fever in adults and which symptoms mean it's time to call a doctor.

Zinc, hydration, and abstinence can all influence semen volume. Here's what the evidence actually says about diet, supplements, and lifestyle habits.

PCOS symptoms can suddenly feel worse, even if "flare-up" isn't a medical term. Learn what's happening in your body, what sets it off, and how to cope.

Find the right pregnancy test for your timing and needs, from early detection to understanding faint lines and when to ask for a blood test instead.

Ozempic reduces hunger and quiets food cravings by mimicking a gut hormone. Here's how it actually works in your body and what to expect over time.

Plant-based estrogen supplements like soy and black cohosh have limited evidence behind them. Here's what the research actually shows and when prescription options make more sense.

Constantly watery eyes can stem from dry eyes, allergies, blocked ducts, or eyelid issues. Here's how to tell the difference and what to do about it.