Health A-Z Slideshows

While too much time in the sun can be bad for your skin and may lead to serious health problems, small doses can be good for you in several ways.

Can't figure out why you feel so hot? Our gallery shows you common and not so common conditions, substances, and situations that can make you feel hot.

Do you sometimes feel cold for no reason? Find out more about conditions that can make you feel chilly.

You can’t control how tall you are, but your height can play a role in some medical conditions. Find out more about how your height can affect your health.

You might go to the doctor expecting a quick answer about what ails you, but it’s not always that easy. Find out more about conditions that are hard to diagnose.

Doing everything you're supposed to do to take care of yourself can seem overwhelming. Which rules can you bend without harming your health?

We’ve made a lot of progress against illnesses like tuberculosis and scarlet fever. But more people seem to be coming down with those and other serious diseases that had looked to be on the way out.

Are you keeping your home as healthy as you could? Find out when you should clean or replace these common household and personal items.

When you go for a dip, you can come across some nasty bacteria, viruses, and chemicals. Find out what to watch out for and how to protect yourself.

Find out why your doctor asks about your relatives’ health conditions and how you can get the information if you don’t know.

Swollen feet can be concerning and even painful. Find out more about things that can make your feet swell and what you can do about it.

Could your sore or ringing ears be a sign of something else? Find out more about what your ears can tell you about your health.

You go to the doctor to get better, but sometimes miscommunication, bad training, or other human error can get in the way of treatment. Find out what you can do to help prevent that.

EKG, UTI, RICE and more: Click through to find out what each letter means and why it’s important.

Find out more about some of the things your doctor does at your annual physical.

When you have ringing in your ears, things you do might make the sound louder. From loud noises to stress, here are things you may want to avoid.

Looking to give or get a kidney? WebMD tells you some surprising facts you may not know about the process.

Everything you need to know about infection with this virus, from causes to symptoms to how to prevent it.

Are you honest with your doctor? You should be, if you want to stay healthy. Check out the 13 lies you’re most likely to tell your doctor.

U.S. presidents have had many different ailments, including some that remained secret for years after their terms ended. Click through to find out more.

Extra fluid can build up and cause swelling when there's a problem with your lymphatic system. Find out when it's likely to happen, how to treat it, and more.

Get to know your bug bunkmates: WebMD introduces you to the critters that share you home with you, from ants, roaches, and beetle to spiders and more.

They've gotten a bad rap over the years due to some athletes using them illegally, but steroids can help treat a variety of health conditions. Learn about the different types and what they do.

Do you know what all the info on your over-the-counter meds means? WebMD breaks down the most important parts of a drug label.

Some summer problems, like sunburn and heatstroke, are common. Others are rare -- think bears and sharks! WebMD helps you prepare.