The difference is that forefoot running is harder, but _simpler_. You dont even need highly engineering shoes to run using it, especially barefoot. You can run on bare metal.
Beautiful comment. The Grope is Good would make a great band name or campaign slogan, or maybe both.
Ill never forget asking a TSA guy if he was sure mmwave was really just sound. "Yes! Its just sound waves, completely harmless," he assured me. "Less than your phone makes in your pocket!"
There is no scientific evidence for being able to "train your immune system". There is plenty of evidence the opposite happens. Covid especially can cause permanent immune damage.