Immunity

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IMMUNITY
SIRAJUDDIN 414(8)

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INTRODUCTION
Immunity refers to the body's ability to prevent the
invasion of pathogens. Pathogens are foreign diseasecausing substances, such as bacteria and viruses, and
people are exposed to them every day. Antigens are
attached to the surface of pathogens and stimulate an
immune response in the body.

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ways to strengthen the immune system.
Don't smoke.
Eat a diet high in fruits and vegetables.
Exercise regularly.
Maintain a healthy weight.
If you drink alcohol, drink only in moderation.
Get adequate sleep.
Take steps to avoid infection, such as washing
your hands frequently and cooking meats
thoroughly.
Eat healthy foods