ScienceInsights

Semi-permanent hair dye is generally safer than permanent dye, but allergic reactions and other risks are still worth knowing about before you color.

Practical eating strategies for managing blood sugar with diabetes, from balancing carbs and protein to meal timing and smarter food choices.

Bloating isn't just a feeling — here's what's actually happening inside your gut, from gas pockets to intestinal wall stretching.

A fast heart rate isn't always a problem, but it can be. Learn what causes it, when to be concerned, and how doctors evaluate it.

Trouble maintaining an erection can stem from blood flow, stress, hormones, or medication. Here's what causes it and how it's treated.

A resting heart rate of 67 BPM is generally healthy, but context matters. Learn what this number means for you and when to pay closer attention.

Learn which words and phrases genuinely support a loved one struggling with addiction, and which ones to avoid, even when you mean well.

Pure Leaf green tea can be a decent choice, but the healthiness depends on which variety you pick and how it fits your diet.

From heat therapy to supplements, here are practical, evidence-based ways to ease period cramps and know when to see a doctor.

THC clears your system slower than most drugs. Learn how long marijuana actually stays detectable based on how often you use it.