Answer:
The other factors like eating habits, lifestyle and environmental conditions affects the person's health.
This is because the body is completely affected by the foods that we eat and the lifestyle in which we live in.
No matter how healthy a person is but once he or she starts having unhealthy fooding habits then the person will suffers from obesity and other respiratory disorders.
The health of the person depends on the food that he eats and the environment he lives in so a person's health is depends on the other factors more than hereditary.