Why do some people avoid drinking beverages with caffeine right before bedtime?Multiple ChoiceIt increases the flow of urine and causes you to go to the bathroom during the night.It decreases the flow of urine and can cause kidney stones.It may affect the ability to sleep, but caffeine has very little effect on the urinary system.It can cause a headache if consumed late at night.It can lead to diarrhea.

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.

When a person ingests caffeine, whether in the form of a cup of coffee or tea, a caffeinated soft drink or even a piece of dark chocolate, the drug begins to take effect almost immediately. First, caffeine enters the bloodstream through the membranes of the stomach and small intestine. It is then metabolised by the liver, which breaks it down into other chemicals. Within fifteen minutes of consumption, most people begin to feel the effects of caffeine, which can include increased heart rate and feelings of alertness or well-being. Within six hours of consumption, about half of the original dose of the drug will have been eliminated from the body. This is why some people drink a second cup of coffee in the afternoon.Which organisational structure does this text primarily use?

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

What is the relationship between alcohol and sleep?Group of answer choicesAlcohol should be used as a way of counteracting the effects of caffeine on sleepDrinking before bed can help to improve your alertness in the following dayAlcohol can cause sleep disruptions as the alcohol is metabolised throughout the nightAlcohol helps to improve the quality of your night's sleep as it is a sedative

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.