Does coffee speed up your metabolism?

I've heard it does and i've also hear that it doesn't. I've heard that it if truth be told slow's down so you store more fat? Does anyone know?Does coffee speed up your metabolism?
yes, and no.
it will speed up your metabolism while the caffeine is affecting your body, but when it wear off it will be slower than it would hold been have you not drank the coffee.
like a crash from a sugar big in a child.
Caffeine is a stimulant. if you use artificial stimulants too much next your body will stop creating it's own stimulants like adrenaline, so primarily your body will become dependant on artificial stimulants. this is true about force drinks and even soda too.
No. Coffee negatively effects your adrenal glands