Does 160.5 mgs of Caffiine Effect Your reaction time? Well in this experiment we will be comparing our reaction times when we are caffeine free and a reaction time when we have an amount of 160.5 mgs of caffeine n our system. We will have 2 subjects testing. In our experiment we will make both subjects take 4 tests before they intake the caffeine. Then after they will intake the caffeine and take the same 4 tests.We believe that the caffine will speed our reaction time up by .10 tenths. BEORE THIS EXPERIMENT CHECK WITH DOCTOR TO SEE IF THE AMOUNT OF CAFFEINE IS OK WITH YOUR BODY AND HEALTH!!!!!!!!! Caffeine intake results in increased nerve firing in the brain. The pituitary gland, located at the bottom of the brain, sees all of the activity and thinks some sort of emergency must be occurring, so it releases hormones that tell the adrenal glands to produce adrenaline.. Adrenaline is the "fight or flight" hormone. It's function is to tell the body when there is an emergency situation, and it has a number of effects on your body:

• Your pupils dilate

• Your breathing tubes open up (this is why people suffering from severe asthma attacks are sometimes injected with epinephrine)

• Your heart beats faster

• Blood vessels on the surface of your body constrict to slow blood flow from cuts and also to increase blood flow to muscles. Blood pressure rises.

• Blood flow to the stomach slows

• The liver releases sugar into the bloodstream for extra energy

• Muscles tighten up ready for action

This explains why, after consuming a big cup of coffee, your hands get cold, your muscles