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					Originally Posted by st33lr4t
					
				 holding your breathe is better for tensing your core structure used for big lifts...or exhale sharpy to get the same tension. | 
	
 if the only way you can manage a lift is by increasing your intra-abdominal pressure by holding your breath, then the lift is too heavy.  you're not exhaling for tension, you're exhaling to avoid huge exercise-induced spikes in your blood pressure that can cause damage to your vasculature and heart.