Air conditioning weakens you. Don’t use it if you have the option.

For me, I love AC when I sleep at night in Southeast Asia. Or while napping. Otherwise opt to be outside or without air conditioning!

Even when I deadlifted 5 plates here in Phnom Penh, I did it in an indoor/outdoor gym with no air conditioning, just free flowing (hot and humid) air… but for some reason, it gave me more strength!