A "heavy drinker" consumes six or more drinks at once or drinks until intoxicated. 
When one of the spouses drinks heavily, marriages end in divorce 50% of the time, according to the study.
	
		
			
		
		
	
				
			When one of the spouses drinks heavily, marriages end in divorce 50% of the time, according to the study.
 
				 
 
		 
 
		 
 
		 
 
		 
 
		