A new study appearing in Stroke: Journal of the American Heart Association revealed that women who drank more than one cup of coffee a day had about a 25 percent lower risk of ischemic strokes than women who drank less. Ischemic strokes are responsible for over 85% of strokes.
To conduct this study, in 1997 Swedish researchers enrolled nearly 35,000 women between the ages of 49 and 83 who were free of heart disease and followed them for about 10 years. The scientists concluded that even modest coffee consumption is linked to reduced risk of stroke, cerebral infarction, and subarachnoid hemorrhage in women.
A stroke is the sudden death of brain cells in a localized area caused by inadequate blood flow. A stroke occurs when blood flow is interrupted to part of the brain. Without blood to supply oxygen and nutrients and to remove waste products, brain cells quickly begin to die. Depending on the region of the brain affected, a stroke may cause paralysis, speech impairment, loss of memory and reasoning ability, coma, or death. Strokes are the third largest cause of death in the United States and are the leading cause of serious, long-term disability.
Scientists at the Karolinska Institute in Stockholm, Sweden, compiled a related metastudy, pooling results from from eight studies made from the mid-1960’s to 2011 and including a total of nearly half-a-million people. This metastudy, published in the American Journal of Epidemiology, unequivocally confirmed that daily consumption of the caffeine in two cups of coffee daily significantly decreases stroke risk.