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Asked by Resh@science to Chris, Hayley, Jimi on 17 Mar 2016.
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Chris Conselice answered on 17 Mar 2016:
It has caffeine in it, which is a stimulant, meaning it keeps us active and awake. Essentially it is a drug.
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Jimi Wills answered on 17 Mar 2016:
It’s actually not true that caffeine keeps you awake. It is a stimulant, but if you are tired, it won’t necessarily stop you from sleeping (but your sleep will be different)
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Hayley Moulding answered on 17 Mar 2016:
Oh I know all about this one. Coffee has caffeine. What caffeine does is interact with some little molecules in your brain. These molecules usually help you to get tired and go to sleep. What caffeine does it talk to these little molecules and stop them from building up and making you sleep. The caffeine pushes back the time you would normally go to sleep (so makes bedtime later) and keeps you awake for longer. It won’t necessarily wake you up if you are really tired, and it won’t necessarily stop you from sleeping. It will affect your sleep though.
Comments
Resh@science commented on :
Thank you for answering, is it ok if we have coffee everyday?
Jimi commented on :
There some studies that say a little coffee everyday can be protective against Parkinson’s … but too much can give you a heart attack! (but you’d need a lot – litres of espresso!)
Sammy commented on :
Coffee have caffeine and that’s not healthy. ☕️