Which symptoms indicate caffeine intoxication?

Caffeine intoxication can manifest through various symptoms that reflect the stimulant effects of caffeine on the central nervous system. Each of the symptoms mentioned contributes to the overall picture of caffeine intoxication.

Restlessness and excitement are classic signs associated with high caffeine intake. These symptoms stem from caffeine's ability to increase alertness and reduce the perception of fatigue, leading to heightened arousal and an inability to relax.

Insomnia is another symptom, often occurring when individuals consume caffeine too close to bedtime, disrupting normal sleep patterns. A pale face may not be a direct symptom of caffeine intoxication, but it can occur in certain situations where blood flow is affected or due to anxiety caused by excessive caffeine consumption.

Nervousness is prevalent in caffeine intoxication, and urinary retention can occur as caffeine is a diuretic, affecting urine production and bladder control.

Considering all these symptoms together, it becomes clear that they collectively characterize caffeine intoxication, making the choice that includes all of them the most comprehensive and accurate representation of the condition.