heat is good for 99% of all people, but my MS makes it miserable, because at the least effort, i sweat so much it looks like i just got out of the shower ! that includes working in 30 something temps with just a t-shirt ! as long as i'm inside, no heat is required, although painting is impossible, and my best friend has to show up in his snowmobile suite with a nose warmer and mittens. when i'm at his shop, i'm into a sleeveless shirt with the buttons opened. only reason i don't go shirtless, is i would offend his wife and dog. then he tells me i stink. some friend he is !