The human body has its limit: the point where it feels it can no longer 'go on' with a high energy-consuming exercises, despite what the mid wants to do. The limit can be altered by many things - alcohol and cigarettes can reduce the amount of high energy-consuming exercise a person can do, whilst drugs like ecstasy can increase the limit.
Anyone who's experienced a hot, sweaty night club where the music is so loud it defies your ear dru...