Too Much Caffeine
It’s no secret that caffeine is a popular morning pick-me-up for many people. A quick cup of coffee or tea can help many people get ready to start their day. However, some people report feeling shaky after consuming caffeine. While everyone does not experience this side effect, it can be confusing and concerning for those who experience it.
When someone consumes caffeine, it enters the bloodstream and binds to adenosine receptors. Adenosine is a compound that makes us feel sleepy by slowing down nerve cell activity in the brain. Caffeine prevents adenosine from binding to its receptors, which results in a stimulant effect. This is why some people may feel more awake after drinking caffeine.
Caffeine also increases the production of neurotransmitters like dopamine and norepinephrine. Norepinephrine is responsible for the fight-or-flight response, which includes increased heart rate and blood pressure. Dopamine is associated with feelings of pleasure and motivation. However, the increased production of these neurotransmitters can lead to anxiety or jitteriness in some people.
The amount of caffeine that leads to shaky hands varies from person to person. For example, some people may experience shaky hands after just one cup of coffee, while others may be able to drink several cups before feeling any effects.
