Step-By-Step Guides

immune system

  • Cold Sore

    WHAT IS IT?Cold sores — also called fever blisters — are tiny, fluid-filled lesions that occur on and around your lips. These blisters are often grouped together in patches.Cold sores spread from person to person by close personal contacts, such as kissing or sharing eating utensils, razors, and ... View Post
  • Chronic Fatigue Syndrome

    WHAT IS IT? Chronic fatigue syndrome is a complicated disorder characterized by extreme fatigue that can’t be explained by any underlying medical condition. The fatigue may worsen with physical or mental activity, and it doesn’t improve with rest.The cause of chronic fatigue syndrome is unknown, ... View Post
  • Celiac Disease

    WHAT IS IT?Celiac disease is an immune reaction to eating gluten, a protein found in wheat, barley, and rye.Among people who have the disease, their immune systems react to gluten similarly to how they respond to a virus or bacteria — they try to attack and destroy the protein. This reaction infl... View Post
  • Carpal Tunnel Syndrome

    WHAT IS IT?Carpal tunnel syndrome is a hand and arm condition caused by a pinched nerve in your wrist that produces numbness, tingling and weakness.The carpal tunnel is a narrow passageway located on the palm side of your wrist that’s bound by bones and ligaments. This tunnel protects a main (med... View Post
  • Bronchitis

    WHAT IS IT?Bronchitis is an inflammation of the lining of your bronchial tubes. The condition may be acute or chronic.Chronic bronchitis is associated with constant irritation or inflammation of the bronchial tube lining, often due to smoking. Chronic bronchitis is one of the conditions included ... View Post
  • Asthma

    WHAT IS IT?Asthma is a condition in which your airways narrow, swell, and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath. For some, asthma is a minor nuisance. For others, it’s a major problem that can lead to a life-threatening asthm... View Post