[Fred25]

Isn't THC produced by the brain to regulate the thyroid's functions? Will the DEA ban usage of my brain?

It appears that someone or something has already done that.

[RANGERAIRBORNE]

Isn't THC produced by the brain to regulate the thyroid's functions? Will the DEA ban usage of my brain?

I think that the person who posted this bit of misinformation has confused "THC" with "TSH" (Thyroid Stimulating Hormone, from the pituitary).

Interestingly, confusion seems to be a hallmark of chronic pot users.