It’s no fun having a needle stuck into your arm. But remember: You’re not just getting a flu shot for yourself — you’re protecting your family, friends, coworkers and community, too.

Bacterial infections that are resistant to treatment by our existing antibiotics are a huge threat to human health — and an enormous challenge for medicine. Scientists are exploring one fascinating line of research: compounds modeled after those found in the blood of the fearsome Komodo dragon.

Is CBD a cure-all — or snake oil? Jeffrey Chen, executive director of the UCLA Cannabis Research Initiative, explains the science behind the cannabis product.

All medical technology carries a price. For implantable defibrillators — which are designed to deliver peace of mind — one of the biggest downsides is fear, says cardiologist Sandeep Jauhar. For patients, the question remains: What are you willing to give up to live a little longer?

By raising questions and taking on a more active role in decision making, patients can do their part to avoid needless medications, tests, treatments or procedures, says neurosurgeon Christer Mjåset.

A kidney donation chain could narrow the huge gap between organ supply and demand. Kidney matchmaker and transplant surgeon Jayme Locke explains how.

Australian researcher Mark Cook is testing an experimental tool that could take the fear out of epilepsy — both for patients and for the rest of the world.