i yearn for a woman's touch

So hentai for me has been both a blessing and a curse. A sort of Schrödinger's cat. On one hand (literally) it's the hottest damn thing I've ever had the pleasure in viewing in my 26 years of orbiting the sun. On the other hand it seems to be interfering with my ability to focus long hours on...

So I got this friend who watches an ungodly amount of hentai and it got me thinking if he's watching that much will it shorten his lifespan? I couldn't find any peer reviewed studies on this topic unfortunately. For a friend of course not me I'm innocent.