ScienceInsights

Relationship PTSD isn't an official diagnosis, but the trauma is real. Learn what causes it, how it affects future relationships, and how people heal.

A blood sugar of 83 mg/dL is well within the normal range. Here's what that number means and when low blood sugar actually becomes a concern.

Brown discharge is usually old blood, but timing and other symptoms can help you figure out what's going on with your body.

Learn what actually causes hangovers and which practical steps—before, during, and after drinking—can help you feel better the next day.

Propranolol typically works for 4–6 hours, but formulation, dosage, and your health all affect how long it stays active in your body.

Poor oral health affects more than your teeth — it's linked to heart disease, brain health, and pregnancy risks. Here's why brushing matters more than you think.

Learn how diet, exercise, and lifestyle habits like sauna use and nasal breathing can support healthy blood flow through natural vasodilation.

Goosebumps form when tiny muscles raise your hairs — but why do cold, fear, and music all trigger the same response? Here's what science says.

A realistic look at what Adderall costs without insurance, from the pills themselves to doctor visits, and how to lower that total.

Oats are naturally gluten free, but most regular oatmeal isn't safe for celiac disease. Here's what to look for when choosing oats.