ScienceInsights

Not enjoying sex is more common than you'd think. Learn about the physical, hormonal, and psychological reasons behind low sexual desire.

Ommetaphobia is a fear of eyes that goes beyond shyness. Learn what causes it, how it's diagnosed, and what treatment options can help.

Receding gums won't grow back on their own, but treatments like gum grafts and the pinhole technique can restore them effectively.

Zyrtec-D is safe for short-term use, but the 7-day limit exists for good reason. Here's what to know before taking it longer.

Allergy-triggered sinus infections aren't contagious, but viral ones are. Learn how to tell the difference and when to be cautious around others.

At 8 weeks, your baby is growing fast and your body is changing. Here's what's happening inside and what to expect at your first prenatal visit.

Eight science-backed techniques to help you fall asleep faster, from breathing exercises to bedroom temperature tips.

Under-eye puffiness usually comes down to fluid, allergies, or aging. Learn what's causing yours and which remedies actually work.

Testosterone shots can cost very little or quite a bit with insurance. Here's what to expect for generic and brand-name options, plus ways to reduce your costs.

Loud noise damages the tiny hair cells in your inner ear that never grow back. Learn how sound causes permanent hearing loss and how to protect your ears.