My friend and I went on Week 5 run 3 yesterday and compared our experiences. She is tall willowy figure (gorgeous) I am ....... not. She struggles to put on weight ., I ........don't. She runs like something you see dodging palm trees on a california beach (sun glasses and all) I ..... don't. She doesn't seem to sweat, or get even a hair out of place..... I go scarlet, and look like a victim of a hedge attack. She doesn't get any kind of high from it, and hates it. I get as high as a kite and love it (despite the wierd looks and questions as to my immediate health). We wonder, as there is significant difference in our morphology, does that affect our ability to get enjoyment from the exercise ? Or is it that I'm such a tub-o-lard any kind of exercise pushes up my endorphin release, and she, being so thin, may just have to push herself much harder to get it ? yours in anticipation!