Why Are People Addicted to Drugs? Brain and Risk
Drug addiction isn't a moral failing — it's a brain disease shaped by genetics, trauma, and biology. Here's what the science actually shows.
Do We Learn Better by Reading or Listening?
Reading and listening are surprisingly close in how well we learn, but the best choice depends on the material and how your brain works.
Did Virginia Expand Medicaid? Yes — Here’s What Changed
Virginia expanded Medicaid in 2019, extending coverage to adults earning up to 138% of the poverty level. Learn who qualifies and how to apply.
Does a Scalp Massager Work? Benefits and Limits
Scalp massagers may support hair thickness and ease stress, but they have real limits. Here's what the evidence actually shows.
How Long After Syphilis Exposure Should You Get Tested?
Testing too soon after syphilis exposure can miss the infection. Learn when to get tested, how accurate the results are, and what to do if you know you were exposed.
What Is Right-Sided Heart Failure: Causes & Symptoms
Learn how right-sided heart failure develops, what causes it, and the symptoms that can affect your legs, liver, and kidneys.
What’s Wrong With My Ear? Causes and When to Worry
From ear pain to ringing to discharge, learn what common ear symptoms mean and which ones need prompt medical attention.
How to Adjust Your Warfarin Dose Based on INR
Learn how INR results guide warfarin dose adjustments, what percentage changes to make, and when to recheck your levels.
Why Are Astronauts Weightless in the Space Station?
Astronauts aren't weightless because there's no gravity — they're in constant freefall. Here's what's actually happening aboard the ISS.
Does Chewing Tobacco Cause Heart Disease?
Chewing tobacco raises heart disease risk through blood vessel damage, high sodium, and inflammation — even without smoking.