It has been known for quite some time that exercise promotes neurogenesis, but now a
study by Leuner, Glasper, and Gould, published by PLoS ONE this month, claims that the most intimate form of exercise - sexual activity - can produce the same effects. And better yet- having multiple, repeated sexual experiences results in a greater positive effect than a single experience alone. Added bonus: it reduces anxiety as well. I love that kind of data!