Experts believe that 1 in 8 people who get food poisoning while traveling may end up with a chronic condition that can linger for months or even years.

Chronic venous insufficiency is a common condition that can make blood pool or collect in your lower legs. Here's what to know about the condition and how to assess your own risk.

WebMD's COPD Health Center provides in-depth information on chronic obstructive pulmonary disease including symptoms, causes, treatment options, diagnosis, and tests.

Your sleep position can make you more likely to snore, have back pain, or get a good night’s rest. Find out what effects your sleep position may have on your health.

Feeling a little “foggy” in the head? Having trouble remembering things? You may have something called “brain fog.” Check out a few things in this WebMD slideshow that can cause it.

Nine out of ten people who have systemic lupus erythematosus are women. Get in-depth lupus information including its causes, symptoms, and treatments.

Allergies and anaphylaxis: common immune responses to allergens. Discover symptoms, triggers, treatments, and the importance of emergency preparedness.

That glass of wine with dinner might do more for you than take the edge off a long day. Check out these possible health benefits of drinking in moderation by clicking through the WebMD slideshow.

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.

Most people get silicosis from a workplace where they inhale large amounts of silica dust. Learn more about the causes, risk factors, symptoms, treatments, and how to prevent this lung disease.

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.

Keep your heart healthy and your weight down with regular exercise. WebMD suggests how to get started, what kind of exercises to do, and how to monitor your workouts.