Bikram Yoga Classes How Do I Protect My Hair From A Heated Room Like Bikram Yoga Class Or A Sauna?

How do I protect my hair from a heated room like bikram yoga class or a sauna? - bikram yoga classes

Naturally I have very thick hair, dry and brittle. I take Bikram yoga and wondered if anyone knew how I could have my hair shop heat. I noticed that when I'm sitting in a sauna for 20 minutes. I noticed that my hair is super dry and damaged.