Martial art legend and actor Bruce Lee may have died from drinking too much water, a research claims.Doctors are making the claim almost 50 years after the icon died aged 32 in the summer of 1973 in Hong Kong, reports aceshowbiz.com.An autopsy report from the time showed that the ‘Enter the Dragon’ star had been killed by brain swelling, which medics said was due to taking a painkiller. Researchers have now reviewed the evidence and concluded that Bruce is more likely to have died from hyponatremia.A team of experts wrote in the Clinical Kidney Journal: “In other words, we propose that the kidney’s inability to excrete excess water killed Bruce Lee. We hypothesize that Bruce Lee died from a specific form of kidney dysfunction: the inability to excrete enough water to maintain water homeostasis, which is mainly a tubular function.””This may lead to hyponatremia, cerebral edema (brain swelling) and death within hours if excess water intake is not matched by water excretion in urine, which is in line with the timeline of Lee’s demise… ironically, Lee made famous the quote, ‘Be water, my friend,’ but excess water appears to have ultimately killed him.”The study claimed Bruce had multiple risk factors for hyponatremia, including drinking high quantities of liquid and using cannabis, which increases thirst. Hyponatremia is when sodium level in blood, which people need for fluid balance, is abnormally low.