Why is understanding family health history important? 1) to change genetic risk factors of disease
2) to remove genetic risk factors of disease
3) to vaccinate for genetic risk factors of disease
4) to counteract genetic risk factors of disease

your abswer is 4

Explanation:

they may not be able to change your genetic DNA but they can reduce the chance of you getting the disease that runs through your family bloodline

alzheimer's disease is a brain disease where you forget things that happened moments, even seconds before hand. reward me plz