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What is known to damage the immune system?

Answer 1

Alcohol, smoking, bad nutrition, HIV, and AIDS.

Step-by-step explanation:

All of these are known to damage the immune system.

HIV and AIDS are known to damage the white blood cells that are extremely important to your immune system.

Alcohol damages the function of your immune system.

Smoking introduces toxins into your system that harms your immune system.

Bad nutrition causes you to not have the correct nutrients to have a healthy immune system.

Hope this is correct, wishing you the best with your studies.

Answer 2

Your immune system can also be weakened by smoking, alcohol, and poor nutrition. AIDS. HIV, which causes AIDS, is an acquired viral infection that destroys important white blood cells and weakens the immune system. People with HIV/AIDS can become seriously ill with infections that most people can fight off.

Step-by-step explanation: