Jeremy has developed a problem with regulating his waking/sleeping cycle and regulating his body temperature. Doctors suspect he may have a brain lesion. Where might this lesion be located?

  in the hypothalamus

Explanation:The hypothalamus is a small region of the brain which is  located at the base of the brain, near the pituitary gland.  It is responsible for playing many important functions like regulating body temperature  maintaining daily physiological cycles e.g walking, controlling appetite  andn managing of sexual behavior , etc so if Jeremy has developed a problem with regulating his waking/sleeping cycle and regulating his body temperature then the lesion might be located in his hypothalamus.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.