ScienceInsights

From at-home cycle tracking to hormone blood tests and imaging, here's what fertility testing actually involves and when each option makes sense.

Hysterectomy is generally safe, but it carries real risks worth knowing. Here's what the evidence says about recovery, hormones, and long-term health.

Binding foods can help firm up loose stools during a bout of diarrhea. Learn which foods help, which to avoid, and when to return to your normal diet.

Postpartum hemorrhage is a serious but treatable complication. Learn what causes it, who's at risk, and how it's managed after birth.

Expired vinegar is almost always safe to use. Learn what actually changes over time and when acidity levels matter for pickling and canning.

College drinking is driven by social norms, brain development, and environment. Here's what the research says about why students drink and what actually helps.

Learn how narcissism is clinically assessed, which self-report tools exist, and what their results can realistically tell you about your traits.

From how long a high lasts to how long THC shows up on drug tests, here's what the science actually says about marijuana and time.

Kidney pain and back pain can feel surprisingly similar. Learn where kidneys actually sit, how each type of pain feels, and when to see a doctor.

Hydrocodone stays in your system anywhere from a few hours to 90 days, depending on the test used and your personal health factors.