What caused Bills Damar Hamlin's injury?

Many cardiologists including Peter McCollough is saying it's commotio cordis

Not so fast…

It certainly could be. but it would be the the first time I have seen it on a professional football field in 50+ years of watching. Have you seen it?

Dr. Peter McCullough told Steve Kirsch he concurred. As Kirsch posted on his Substack:

According to Dr. Peter McCullough, the injury that Buffalo Bills safety Damar Hamlin sustained is known as commotio cordis (a phenomenon in which a sudden blunt impact to the chest causes sudden death in the absence of cardiac damage).

The time delay from the hit until he collapsed is expected in commotio cordis. Peter believes that the ventricular tachycardia and ventricular fibrillation could have been set up by the vaccine if he took it. Hamlin was shocked back to rhythm. He now has anoxic encephalopathy. He’s in critical condition at the hospital.

Ok so he’s also saying the vaccine could have set him up for the V-fib that resulted. But V-fib can happen with a blow and without a blow absent CC. Ever heard of the so-called “new condition” known as “Sudden Adult Death Syndrome”? People drop dead from V-fib all the time. The vaccine has clearly made it more common.

Statistically, it might be a first after millions of NFL tackles Tough odds…

Here’s my take:

Two points. 1: Commotio Cordis doesn't explain any of the soccer players who have collapsed on the pitch. 2. F = P x A . That means for a large area, the pressure is small for a given force. and it's the pressure that matters, not the force. (this is why getting hit in your deltoid with a knuckle hurts way more than a flat fist when the hitter's arm comes in at the same speed and "solidity". ) The impact must be over the left ventricle and, in this case, yes, the runner's shoulder pad contacted the tackler over the left ventricle.. Shoulder pads are big, flat things so the pressure was minimal even though the runner weighs 220 and was running 15 mph. The point of the helmut might have been a problem in an illegal spearing maneuver but the runner's helmut did not impact the tackler in the right place (over the left ventricle) and there was no spearing (a defensive players device, anyway). CC is almost never seen in football because one's shoulder pads usually cover the left ventricle and helmut impacts get their impact "spread out", thus lowering the pressure of that impact.

Usually CC is seen in baseball when a well-hit 100mph "one-hopper" bounces up and hits the fielder in just the right place (baseball fielders don’t wear pads on their chests- catchers do or they would get this every year). The ball is small so the pressure is high. We also see it in lacrosse where underhanded shots easily exceed 100mph. A lacrosse ball is also small and very heavy and hard (worse than a baseball). Goalies should always wear a chest protector to "spread out the impact".

Dr. McCollough is most likely wrong in saying the cause was commotio cordis. He could be right, of course, and it remains to be seen, but it would be a once in NFL history event for a very routine tackle. If people can die from routine tackles like that, we would have to ban football.