10 doctors weighed in:
What are the effects of caffeine?
10 doctors weighed in

Dr. Keegan Duchicela
Family Medicine
7 doctors agree
In brief: Stimulant
Caffeine's effects often depend on the individual.
For some people, it can provide energy, focus, and alertness. In others, and especially at higher concentrations, it can cause jitteriness, problems sleeping, and palpitations. With repetitive use, you may become tolerant to caffeine, meaning its effects are reduced over time.

In brief: Stimulant
Caffeine's effects often depend on the individual.
For some people, it can provide energy, focus, and alertness. In others, and especially at higher concentrations, it can cause jitteriness, problems sleeping, and palpitations. With repetitive use, you may become tolerant to caffeine, meaning its effects are reduced over time.
Dr. Keegan Duchicela
Dr. Keegan Duchicela
Thank
Dr. Alan Wartenberg
Addiction Medicine
1 doctor agrees
In brief: Many
It is a stimulant, chemically similar to amphetamine but much less potent.
It can cause anxiety, tremor, insomnia and irritability, and in some very sensitive people, this can be severe and include elevation of blood pressure and pulse. In high doses, like in some of the energy drinks, some of these symptoms have had serious consequences, with a few deaths, probably due to heart arrhythmias.

In brief: Many
It is a stimulant, chemically similar to amphetamine but much less potent.
It can cause anxiety, tremor, insomnia and irritability, and in some very sensitive people, this can be severe and include elevation of blood pressure and pulse. In high doses, like in some of the energy drinks, some of these symptoms have had serious consequences, with a few deaths, probably due to heart arrhythmias.
Dr. Alan Wartenberg
Dr. Alan Wartenberg
Thank
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