Caffeine influences the monamine systems as strongly as cocaine and amphetamines.Group of answer choicesTrueFalseNo answer text provided.No answer text provided.

The ergogenic effect of caffeine appears to be due to inhibition of the central nervous system. increased calcium stored in the sarcoplasmic reticulum. increased glycogen stored in the liver. an increase in free fatty acids for fuel use.

hich of the following is true of the effect of caffeine on the nervous system?Multiple ChoiceIt increases relaxation.It increases attentiveness.It causes a drop in heart rate.It increases reaction time.

Which direct effect of caffeine is most dangerous when consumed in amounts greater than recommended especially for individuals who are not typically active and/or are not "trained"?Group of answer choicesIncrease in anxiety and insomnia.Increase in urine and acid production.Increased risk of dehydration because caffeine is a diuretic.None of these are dangerous as they are all normal effects of a central nervous system stimulant.Increase in heart rate.

How does caffeine work at the neuronal level and why does it stop us feeling sleepy?

Tolerance to the stimulant effects of caffeine is due toGroup of answer choicesdown-regulation of adenosine receptorsup-regulation of adenosine receptorsdesensitization of adenosine receptorssensitization of adenosine receptors