You may know to look for poison ivy's three-leaf stem, but what else do you know about rash-causing plants? WebMD explores myths and facts of poison plants.

Eggs have gotten a bad rap in some circles. Yes, they do have some cholesterol and fat. But they also have loads of nutrients and protein. Learn more about the health benefits of eggs.

No one really knows what causes asthma, but doctors have identified at least 10 known triggers including allergies, food additives, and more. Learn more about asthma triggers at WebMD.

Understand some common causes and treatments of hand pain, including carpal tunnel syndrome, arthritis, and trigger finger.

There are many types of dental crowns and they're used for a variety of situations. Learn more about your teeth and crowns from the experts at WebMD.

Regular exercise raises levels of good HDL cholesterol, and lowers unhealthy triglycerides. Here’s what type of exercise – and how much – you need to help manage your cholesterol.

Lactose intolerance is the inability to digest lactose, the sugar in milk and dairy products. Read on to know if you are intolerant or not.

How many calories do you need each day to maintain a healthy weight? Here's a chart that shows how many calories you need each day to maintain weight, lose weight, or gain weight.

In severe cases, a salicylate allergy can lead to anaphylaxis, which is a life-threatening reaction that is an emergency. But this is rare in the case of salicylate allergy.

The experts at WebMD provide a list of common diabetes drugs.

Find out with this WebMD slideshow what foods are worst for your constipation.

WebMD takes you through the steps for emergency treatment of shock.