DISEASES l health reviewer 4finals l

• ALLERGY - Occurs when a person’s immune system reacts to substances in the environment that are harmless to most people. 
• ASTHMA - A respiratory condition that many people have. It commonly leads to a difficulty in breathing
• ARTHRITIS - A disease affecting the joints, makes them inflamed, painful, and stiff.
• CARDIOVASCULAR DISEASES - A general term for conditions

  affecting the heart or blood vessels.
• CANCER - A disease in which some of the body's cells grow and spread to other parts of the body.