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Questions tagged [caffeine]

A crystalline compound that is found esp. in tea and coffee plants and is a stimulant of the central nervous system.

A crystalline compound that is found esp. in tea and coffee plants and is a stimulant of the central nervous system.

[An alkaloid, 1,3,7-trimethylxanthine; chem. formula: C 8H 10N 4O 2.]

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Can caffeinated shampoo have a noticeable effect?

I recently picked up some new shampoo and didn't notice that it included caffeine. I'm curious if this is just a marketing gimmick. Does having a small concentration of caffeine on my scalp for 30-60 seconds actually have a chance of being…
Nate Barbettini
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What are the negative health effects of Absolute Zero Monster Energy

I consume one 473ml can of Absolutely Zero Monster energy in the morning and another one at around 3pm. I consider these important otherwise i can't get into gear in the morning and begin to fall asleep at my desk in the afternoon. My lifestyle…
user74847
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