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"no it doesn't"

Erm yes it does - that or the UK government has forced me to do a whole compulsory unit on the Nervous System and Caffeine etc.

It's because caffeine is a stimulant.

This stimulant stimulates the synapses - mean messages travel faster along the Central Nervous System.

It also causes blood to pump faster around the body - allow more oxygen to get to muscles speeding up the body's working time in general.

That's all I know...

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8y ago
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9y ago

Caffeine is the most widely used drug in the world. Caffeine acts fast and is immediately distributed to the brain.

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12y ago

10-15 minutes, starts to wear off in about an hour.

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13y ago

It generally takes 30 to 45 minutes for caffeine to get absorbed by the body.

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Q: How fast does caffeine act?
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