It’s true. Between myself and some close friends I have seen the following in ~6 months: - unable to run -> run a 10k - increase of ~50% in a all out 20 minute

It’s true. Between myself and some close friends I have seen the following in ~6 months: - unable to run -> run a 10k - increase of ~50% in a all out 20 minute cycling test - max mile time 9min->6:30min The human body can make incredible cardiovascular leaps when starting from a relatively low point