ScienceInsights

Essential oils show limited evidence for ED, with rose oil leading the research. Here's what the science actually says and how to use them safely.

Waking up anxious at 3 a.m. is frustrating, but simple techniques like cognitive shuffling and body-based calming can help you drift back to sleep.

Learn what glucose test results mean, what passing looks like, and what to do if your numbers come back higher than expected.

Two-month-olds typically sleep 14–17 hours a day, but not all at once. Here's what normal sleep looks like at this age.

Learn how the four stages of congestive heart failure progress, from early risk factors to advanced disease, and what each stage means for treatment.

From antivirals to rest and hydration, here's what actually helps you recover from the flu more quickly.

Learn what semen analysis measures, why home tests have limits, and which lifestyle factors affect sperm health and fertility.

Low blood sugar after eating is more common than you'd think. Learn what causes it, how it feels, and the dietary changes that can help.

From cool compresses to antihistamines, learn what actually helps hives and when it's time to see a doctor.

Sore or swollen gums can have several causes, from brushing too hard to infection. Here's how to find relief at home and when to see a dentist.