Mmm . . . Interesting, but no mention of free radical oxygen molecules in semen

that are carcinogenic and therefore good to ejaculate regularly.

I guess the 2 day abstinence wouldn't be too damaging.

Also, there's research that recommends approx. 25 ejaculations per month.

ie most days leaving about 5 days for hypothetical 21st century techno-cave-man to go hunting . . . for food !

The info about free radicals I learnt in person from an occupational therapy nurse,

and the info about cumming 25 times/month

from research from Brigham and Women's Hospital in America.

This 90 minute vid would help the 25 times per month, though personally,

being a 70 year old teenager, I find that regular practice

with and without my girlfriend keeps the juices flowing at near the recommended frequency. . .