You're perfectly within your rights to question the hypothalamus theory, Hell@back, because while there's little doubt that our hypothalamii (sp?) are different to those of other people,  there is just as little to say whether this is the cause of CH or the result.

To this day I wonder whether our 'cluster bumps' are cause or result and no-one will ever convince me there's no connection between CH and sneezles. Dunno which causes which, or perhaps there's a common origin, but I know that they walk hand in hand and bugger the science.

Don't be put off by "facts",  old mate, nor by those who insist there is only one truth.

Always ask questions until you're satisfied with the answers.

Full steam ahead and damn the torpedoes!