I sweat a lot normally.. I don't notice any increase on most gear, but the first few times I used tren I got night sweats really bad. I would wake up several times a night with my pillow and sheets soaked. Ended up having to just sleep on towels and change them out several times a night. Now that I've used tren quite a few times it doesn't really have that effect anymore.. then again, I use much lower doses than I did when I was in my 20's.. either that or the gear is weaker lol. Like everyone else asked, what are you running?