Caffeine, a common stimulant found in coffee, tea, and energy drinks, is widely consumed for its energizing effects. However, excessive intake can lead to several adverse health effects. Here are eight notable side effects of caffeine overdose:

Anxiety and nervousness

High doses of caffeine can increase anxiety levels and induce nervousness. This is due to caffeine’s stimulant effect on the central nervous system, which can heighten stress responses and exacerbate anxiety disorders.

Insomnia

Caffeine is known for its ability to keep people awake by blocking the sleep-inducing chemical adenosine.Overconsumption can lead to difficulty falling asleep, disrupted sleep patterns, and insomnia, further contributing to fatigue and reduced productivity during the day.

Digestive issues

Excessive caffeine intake can lead to digestive problems, including acidity and irritable bowel syndrome (IBS). It stimulates the production of stomach acid, which can cause acid reflux, heartburn, and aggravate conditions like gastritis and ulcers.

Cardiovascular problems

According to Dr. Manish Mittal, Consultant Physician, Bhailal Amin General Hospital, Vadodara, “Caffeine can significantly impact the cardiovascular system, leading to increased heart rate, hypertension, and irregular heartbeats. People with pre-existing heart conditions or hypertension should consume caffeine with caution, as it can exacerbate these issues and even cause chest pain.”

Worsening of diabetes

Caffeine can affect blood sugar levels, potentially disrupting diabetes management. It may cause short-term spikes in blood glucose and insulin levels, complicating diabetes control. Individuals with diabetes are advised to monitor their caffeine intake closely.

Exacerbation of neurological disorders

People with neurological conditions like epilepsy or Parkinson’s disease may find that caffeine worsens their symptoms. While caffeine doesn’t cause these conditions, it can exacerbate seizures in epilepsy and tremors in Parkinson’s disease, making management more challenging.

Glaucoma and eye health

Caffeine can increase intraocular pressure, potentially worsening glaucoma. Patients with this eye condition should be cautious with their caffeine consumption to avoid aggravating their symptoms and risking further eye damage.

Bladder control issues

Caffeine acts as a diuretic, increasing urine production and potentially leading to bladder control problems, especially in older adults. This can result in increased frequency and urgency of urination, contributing to discomfort and inconvenience.

The takeaway

Overall, while caffeine can provide beneficial effects in moderation, excessive consumption can lead to a range of health issues. It is important to be mindful of your caffeine intake to avoid these adverse side effects and maintain overall well-being.

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