How might nutrition and exercise influence whether or not an individual develops a disease for which they have an inherited higher risk?

The diseases such as obesity, diabetes and some other genetically inherited diseases can be cured by physical exercise.

The diseases can be cured or can be prevented by proper exercise and nutrition.

But some of the genetically inherited diseases such as color blindness or hemophilia, nutrition and exercise cannot help in this case.

Although by keeping the body healthy( nutrition and exercise) can prevent the risk of inherited disease.

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