Not to cast doubt on Mr. Wagner, but you might want to think twice on this one.
When cells are starved for oxygen they start dying. Your brain while only a small portion of your body uses over a quarter of the oxygen you breathe.. going ~4 minutes without oxygen will cause irreversible brain damage and even death.
Swimming = good, exercise = good, doing new things = good
Starving your brain for oxygen and killing brain cells to get a new "high" = bad.
If that’s your goal you can always just sniff paint or drink alcohol, save yourself the trip to the pool.
Fp
PS And to the response "well what about free divers?" - Boxing
Just because people do something (and do it well I might add) doesnt negate the fact that it turns them into drooling idiots.
