Sweat easier yes but i do that on test also and just in general since i am over 280. Breathing issues cant say the tren does it to much maybe shows it more than i normally have. Mood problems nope, sleep issues nope i already dont sleep much, heart pounding no more than usual. As i said before i react diff than most to tren, most people hate it and i love it. Would i recomend it to a guy NO cause i know what other issues people have. oh and never have had the cough that people have. Im diff dude but would not tell someone to do it with all the hate for it out there.