A concave chest means that your diaphragm is sagging.

Many complain of a chronic weariness that sleep will not banish. Their trouble is that too little blood is pumped through the body per minute; this sluggishness, permitting poisonous waste matter to accumulate in every cell, clogs the channels of energy.

My own ambition in the ring had always been skillful boxing, speed and defense - on the order of Mike Gibbons.

The way to know about championship quality is to learn from champions, and that I did; studying them with professional purpose during my time in the ring and from habitual interest afterward.

I did six years of planning to win the championship from Jack Dempsey.

Normally, I could hit hard enough, as anyone who studied my fights might have known. But the impression was that I was essentially defensive, the very reverse of a killer, the prize fighter who read books, even Shakespeare.

A concave chest means that your diaphragm is sagging.