Energy drinks might give you wings, unleash the beast or fuel your grind - but chugging too many might pose a serious stroke risk, doctors warn.

An otherwise fit and healthy man in his 50s with a daily eight-can habit found out the hard way, a case study published Tuesday in the journal BMJ Case Reports states.

This patient suffered permanent damage from a minor stroke caused by extremely high blood pressure, doctors reported. His blood pressure returned to normal only after he quit energy drinks.

"I obviously wasn't aware of the dangers drinking energy drinks were causing to myself," said the patient, who was treated at Nottingham University Hospitals NHS Trust in the U.K. "(I) have been left with numbness (in my) left-hand side hand and fingers, foot and toes even after eight years."

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