Here’s a summary from Forbes:

Here’s something you need to know about: Could we be seeing the beginning of the end of the modern running shoe? A growing legion of runners and recreational joggers—I am one—backed by a rising number of physiologists, believe that running shoes do more harm than good for millions of people. With their inflexibility, cushioning, and raised heels, they almost force you to crash down on your heel and send the impact of all your weight in every step straight into your knees and hips. That’s not how our bodies were designed to work, and it does terrible harm.

These shoes are not for everyone. You really need to consult your doctor and see whether this new style of running and new gear makes sense for you.