Something Kung Lek said in passing in another thread; excessive gas is considered a loss of qi, therefore grain is often avoided by qigong practitioners.

I've never heard this before, is it considered true by many of you?

Also, what else is considered a loss of qi? I know a lot of people consider ejaculation a loss of jing, therefore qi depleting. What other everyday bodily activities threaten our qi?

I don't think there's a suitable smilie for this thread!

Perhaps for excessive wind?

Serious question, however. What do you all think?