Yes, athletes have been both icing and heating injuries for centuries, and doing many other things that make no sense. However, it could be the case that icing

Yes, athletes have been both icing and heating injuries for centuries, and doing many other things that make no sense. However, it could be the case that icing injuries is a good idea if you need to perform the next day (or otherwise soon) but a bad idea if you want to heal the best/soonest that you can. Or it could all just be nonsense, no shortage of that, no matter how popular.