A family friend (not an athlete) recently told me about something called bemer that she swears by and apparently has a decent following in the ultra endurance community, especially in RAAM. Does anyone know anything about this? It looks like snake oil to me, but I'm wondering if someone here knows more about the science than I do. Thanks!
https://www.youtube.com/watch?v=MZUvZ-3wO1A
https://www.youtube.com/watch?v=MZUvZ-3wO1A