how is it that adrenaline makes you feel like you could jump 20 feet in the air?or run extremly fast?

can you really, run faster and jump higher with adrenaline?

why does it make the senses more accute?

Epinephrine (aka adrenaline) has numerous effects on the body, which are collectively termed the "fight-or-flight response." In the liver, epinephrine activates the breakdown of glycogen stores, releasing glucose into the bloodstream. In addition, it mobilizes fat stores from adipose tissues. These two effect make more energy available for muscle tissue. Furthermore, epinephrine increases heart rate and dialates/contracts selected blood vessesls to redirect blood flow toward muscle tissue and away from systems which are not needed during fighting of fleeing (e.g. the digestive system).

 

So, these actions do prime the body for extreme physical activity, so it will allow you to run faster and jump higher than under other conditions. I'm not sure about epinephrine affects sensory neurons, so I can't tell you how or if epinephrine makes your senses more accute. Perhaps it is the result of increased blood flow to the brain.

hmm, cool.

thanks.

your probably right about the sences. more blood flow = more oxygen and nutrients allowing more efficent function.

I was looking into the increased sensory perception issue and it might be due to norepinephrine, which is released by the adrenal medula in addition to epinephrine during the "fight-or-flight" response. Aparently, drugs which inhibit the reuptake of norephinephrine (e.g. atomoxetine) are used in the treatment of ADHD.

The drugs could cause problems tho, inhibiting the sences could make the kid "dull" and nonresponsive. also the doseage would be different for each child. so it should be a shot or an oral medicine. so you only "dull" the sences enough for them to pay attention and not be so wild.

im ADD, i have ALOT of trouble focusing on one thing for very long.

my little brother is ADHD, VERY ANOYING. lol

Also, adrenaline causes deterioration of bones, so preventing it's reuptake is a bad idea, esp. in children.