But I sweat a lot
Especially during yoga and especially on a humid day. Today during yoga I was completely soaked. I had to wring the sweat out of my singlet as if it dropped into a bucket of water, it was unreal.
But according to Ashtanga yoga guru Pattabhi Jois I was well on my way to enlightenment by sweating that much:
"Breathing and moving together while performing asanas makes the blood hot, or as Pattabhi Jois says, boils the blood. Thick blood is dirty and causes disease in the body. The heat created from yoga cleans the blood and makes it thin, so that it may circulate freely."
Keep up the boiling!