Which variables most likely have the greatest impact on how our bodies function, life expectancy, and the symptoms, course, and treatment of the diseases that strike us?

Sex and Gender most likely have the greatest impact on how our bodies function, life expectancy, and the symptoms, course, and treatment of the diseases that strike us.

Explanation:

As we know some of the diseases are specific for a specific gender.

There are biological differences in both the genders based on function, age expectancy and diseases. There is a higher deposition of fat in females than males. Similarly some of the hormones begin to decrease in females in their 40s resulting in bone pains and weaknesses while theses hormones in males decreases at a very elder age. Similarly treatments also vary in both sexes.

proteins is the answer