if you could bite through a carrot some people think this means you could bite through your own finger but biting through a carrot only takes about 45 lb of force and just fracturing a human finger requires around 335 lbs of force the average human only has a bite force of around 160 lb which isn't enough to break through bone and even if you somehow did have enough Force to bite off your own finger your brain's pain response would stop you before you could finish the ACT