ScienceInsights

Learn what the numbers on your glasses frames and prescription actually mean, so you can shop smarter and understand your eye care.

Discover which foods are richest in vitamin C, why humans rely on diet to get it, and how supplement vitamin C is actually made.

Learn how the VA's 8 priority groups work, who qualifies for each, and what copay costs you can expect based on your assigned group.

Many STIs cause no obvious symptoms. Learn which signs to watch for, from discharge and sores to flu-like symptoms, and when to get tested.

Sports medicine nurses treat injuries, monitor concussions, and support athlete recovery. Learn what they do, where they work, and how to become one.

Thinking about starting methadone treatment? Here's what the intake process, dosing, daily visits, and long-term care actually look like.

BPD episodes are often called "splitting." Learn what triggers them, how long they last, and how they differ from bipolar episodes.

Learn what doctors actually consider safe drinking levels and how alcohol affects cancer risk, heart health, and blood sugar at different amounts.

Learn what an ESA letter for a dog actually does, who can write one, and what rights it gives you as a tenant.