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There’s the usual advice. If you want to live longer, exercise. Eat green vegetables. Avoid stress.

Oh—and be careful about smelling the opposite sex.

Scientists have known for some time that exposing flies and mice to pheromones of the opposite sex can change the pace at which the animals age. The question is, why does this happen?

Evolutionary biology provides one framework for understanding the effect, by positing a tradeoff between investing in reproduction on the one hand, and in repair and maintenance on the other. The framework also suggests an explanation for gender differences in aging: Since males and females have very different relationships to reproduction, the ideal tradeoff between reproduction and repair looks different for each of them.

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Click link below for article:

http://aging.nautil.us/feature/276/why-smelling-the-opposite-sex-can-age-you

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