Both Saunas and Coffee enemas are questionable for adrenal fatigue.
I tried one coffee enema and I didn't sleep one second that night. I was wired all night. Coffee is a stimulant no matter which hole you stick it in ;)
Saunas are even worse. I had a major crash after doing saunas for a couple of weeks. There are a couple of reasons for it. Raising your core body temperature is stressful. 2nd....the loss of fluids and electrolytes (especially sodium) is very hard on your adrenal glands. Your adrenal glands will need to try to produce more Aldosterone in order to increase sodium in order to re-hydrate.