Health and Me

Ishita Roy

How Energy Drinks Nearly Killed a Healthy 54-Year-Old Runner

An absolutely fit and healthy man, 54, a runner too, a non-smoker, non-drinker and off the drugs, suffered a stroke that caused permanent damage to him. This is after he consumed <span>energy drinks</span>. It all started when he suddenly noticed a weakness in his left side of the body. It started with numbness and difficulties with balance, walking, swallowing and speech. This is when his family member rushed him to a nearby stroke clinic. 

According to CNN: “His blood pressure was sky high, about 254 over 150 millimeters, yet when you looked at him you’ve never know it, because he looked so well. That’s why we call hypertension the silent killer,” said Dr. Sunil Munshi, a consulting physician at Nottingham University Hospitals NHS Trust in the United Kingdom.

The man was a warehouse worker from Sherwood, Nottingham and the case is published in <strong><em>BMJ Case Reports</em></strong>, with Munshi being the senior author of the paper. 

As per Dr Munshi, the patient arrived at the hospital with numbness on his left side. Scans revealed a stroke in the thalamus, a deep part of the brain responsible for balance and coordination.

“His left side was numb, and scans showed he had a stroke in the deeper part of the brain, the thalamus, which explains the unsteadiness,” Dr. Munshi said. The man was admitted, and doctors began aggressive treatment. He required five different medications before his blood pressure fell to 170. Normal adult blood pressure is below 120 over 80 millimeters of mercury. Readings of 180 over 120 or higher qualify as a medical crisis.

Once discharged, the situation worsened. At home, his blood pressure rose again, reaching 220 despite continued treatment. With no clear medical cause, doctors conducted extensive tests. Everything came back negative.

<h2>The Hidden Clue: Eight Energy Drinks a Day</h2>

The breakthrough came only when the man casually mentioned his daily habit. To stay alert on long shifts, he drank eight highly potent energy drinks every day, two cans at four separate points. Each can contained about 160 milligrams of caffeine.

<h2>“Suddenly the diagnosis was clear,” Dr. Munshi said.</h2>

Study first author Dr. Martha Coyle noted that some energy drinks contain up to 500 milligrams of caffeine per can. For comparison, tea has about 30 milligrams and coffee about 90. In the United Kingdom, adults are advised to consume no more than 400 milligrams of caffeine a day. This man was taking in more than 1,200 milligrams, about triple the recommended limit. The US Food and Drug Administration gives the same advice.

After he stopped drinking energy beverages entirely, his blood pressure returned to normal within weeks. He is healthy today, but the stroke left lasting effects.

“I obviously wasn’t aware of the dangers,” the man told his doctors. “I have been left with numbness on the left side, in my hand, fingers, foot and toes even after eight years.”

<h2>Why Energy Drinks Can Be Dangerous</h2>

Researchers say the problem extends far beyond caffeine. Many energy drinks contain taurine, an amino acid that can raise blood pressure even more when combined with caffeine. High sugar levels also contribute to blood vessel damage.

“These drinks contain combinations of ingredients that increase blood pressure, affect metabolism and may damage blood vessels,” Dr. Munshi said. The beverages often include ginseng, guarana, theophylline and theobromine, all stimulants that can further strain the cardiovascular system.

Doctors have documented cases of cardiac arrhythmias, hemorrhages and strokes linked to heavy energy drink use. Some young adults combine them with cocaine or methamphetamine, a mix Munshi described as capable of causing “havoc.”

<h2>A Call for Greater Awareness and Regulation</h2>

Munshi believes this case should push doctors to ask patients about energy drink use, especially younger individuals presenting with heart issues or stroke-like symptoms. He said the drinks have become more potent over time and may warrant stricter regulation and clearer public warnings.

“We propose increased regulation of energy drink sales and advertising, which are often targeted at younger ages,” he said.

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An absolutely fit and healthy man, 54, a runner too, a non-smoker, non-drinker and off the drugs, suffered a stroke that caused permanent damage to him. This is after he consumed energy drinks. It all started when he suddenly noticed a weakness in his left side of the body. It started with numbness and difficulties with balance, walking, swallowing and speech. This is when his family member rushed him to a nearby stroke clinic. According to CNN: “His blood pressure was sky high, about 254 over 150 millimeters, yet when you looked at him you’ve never know it, because he looked so well. That’s why we call hypertension the silent killer,” said Dr. Sunil Munshi, a consulting physician at Nottingham University Hospitals NHS Trust in the United Kingdom.The man was a warehouse worker from Sherwood, Nottingham and the case is published in BMJ Case Reports, with Munshi being the senior author of the paper. A Stroke Without A Clear CauseAs per Dr Munshi, the patient arrived at the hospital with numbness on his left side. Scans revealed a stroke in the thalamus, a deep part of the brain responsible for balance and coordination.“His left side was numb, and scans showed he had a stroke in the deeper part of the brain, the thalamus, which explains the unsteadiness,” Dr. Munshi said. The man was admitted, and doctors began aggressive treatment. He required five different medications before his blood pressure fell to 170. Normal adult blood pressure is below 120 over 80 millimeters of mercury. Readings of 180 over 120 or higher qualify as a medical crisis.Once discharged, the situation worsened. At home, his blood pressure rose again, reaching 220 despite continued treatment. With no clear medical cause, doctors conducted extensive tests. Everything came back negative.The Hidden Clue: Eight Energy Drinks a DayThe breakthrough came only when the man casually mentioned his daily habit. To stay alert on long shifts, he drank eight highly potent energy drinks every day, two cans at four separate points. Each can contained about 160 milligrams of caffeine.“Suddenly the diagnosis was clear,” Dr. Munshi said.Study first author Dr. Martha Coyle noted that some energy drinks contain up to 500 milligrams of caffeine per can. For comparison, tea has about 30 milligrams and coffee about 90. In the United Kingdom, adults are advised to consume no more than 400 milligrams of caffeine a day. This man was taking in more than 1,200 milligrams, about triple the recommended limit. The US Food and Drug Administration gives the same advice.After he stopped drinking energy beverages entirely, his blood pressure returned to normal within weeks. He is healthy today, but the stroke left lasting effects.“I obviously wasn’t aware of the dangers,” the man told his doctors. “I have been left with numbness on the left side, in my hand, fingers, foot and toes even after eight years.”Why Energy Drinks Can Be DangerousResearchers say the problem extends far beyond caffeine. Many energy drinks contain taurine, an amino acid that can raise blood pressure even more when combined with caffeine. High sugar levels also contribute to blood vessel damage.“These drinks contain combinations of ingredients that increase blood pressure, affect metabolism and may damage blood vessels,” Dr. Munshi said. The beverages often include ginseng, guarana, theophylline and theobromine, all stimulants that can further strain the cardiovascular system.Doctors have documented cases of cardiac arrhythmias, hemorrhages and strokes linked to heavy energy drink use. Some young adults combine them with cocaine or methamphetamine, a mix Munshi described as capable of causing “havoc.”A Call for Greater Awareness and RegulationMunshi believes this case should push doctors to ask patients about energy drink use, especially younger individuals presenting with heart issues or stroke-like symptoms. He said the drinks have become more potent over time and may warrant stricter regulation and clearer public warnings.“We propose increased regulation of energy drink sales and advertising, which are often targeted at younger ages,” he said.