What do you mean by immunity ? Write four factors responsible for reducing immunity of the body for a person.

Immunity is the resistance of an organism to prevent and fight infections and diseases.

Factors that weaken the immunity of the body of a person-

- Chronic stress.
- Poor nutritional food. A poor diet and excessive intake of fats and sugars can weaken the immunity and make you vulnerable to chronic conditions.
- Intake of drugs and alcohol.
- Inadequate sleep.
- Dehydration.
- Aging. As the body ages, the immune system weakens gradually.
- Inactivity, lack of exercise.

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