interesting, too - everyone has their mental limits. it is the distance or effort you are used to doing for putting forth. mine was 3 miles. i had not run more than three miles outside. on a treadmill, yes - but it has the belt to propel you, so that is different. but mine was three. last week i pushed 4 miles, now 5. this is so COOl. this is what you can do with your mind. just think it, and make it happen, because YOU CAN.
tomorrow: 6:00 a.m. cycle. probably 20-30 miles. phew!