9 Side Effects of Too Much Caffeine

Insomnia: Excessive caffeine intake, especially later in the day, can interfere with sleep patterns and lead to difficulty falling asleep or staying asleep.

Jitters and Nervousness: High doses of caffeine can cause jitteriness, restlessness, and increased anxiety or nervousness.

Increased Heart Rate: Caffeine is a stimulant that can temporarily increase heart rate and blood pressure, especially in those sensitive to its effects.

Digestive Issues: Too much caffeine can lead to digestive problems such as stomach upset, acid reflux, and diarrhea.

Muscle Tremors: Excessive caffeine intake can cause muscle tremors or twitching, particularly in sensitive individuals.

Headaches: While moderate caffeine consumption can help alleviate headaches for some people, excessive caffeine intake or sudden withdrawal can lead to headaches or migraines.

Dehydration: Caffeine is a diuretic, meaning it can increase urine output and potentially contribute to dehydration if not balanced with adequate water intake.

Increased Anxiety: High doses of caffeine can exacerbate anxiety symptoms and may lead to feelings of nervousness, agitation, or panic in susceptible individuals.

Dependency and Withdrawal Symptoms: Regular consumption of large amounts of caffeine can lead to dependency, and sudden cessation or reduction of caffeine.