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Deficient Slowing of the Heart among Very Heavy Social Drinkers

Louis C. Johnston, Suman Patel, Prasad Vankineni, Neil Kramer

SUMMARY. Very heavy social drinkers demonstrated less slowing of their heart rate than controls while exhaling after a maximal inhalation. While this suggests defective autonomic control of the heart, clarification of the mechanism and significance of this reflex and its impairment must await sophisticated study.