Flip your grip for bigger gains

Want 80s action-hero chest vibes? Small change, big results. 

As someone over 40r, would you still, even now, like an 80s action hero's upper body? 

If you change your grip to an underhand grip rather than overhand on bench press you'll work your upper pecs 30% harder. 

So in a few months, that's 30% more pecs on show.   

Source: The Journal of Strength and Conditioning Research