Fact 1: Exercise has a positive impact on a human 's health. Fact 2: Prevention is key to their health, longevity, and reproduction. Given the two facts above, human longevity and reproduction are positively impacted by:?
Pick from:
1). aging
2). food
3). nutrients
4). gene flow
5). old age
6). exercise
7). dying young
8). reduced heat
6).