I 2nd the biking recommendation. I find it's a relatively 'easy' exercise, one that my body seems to do quite well with, and doing ~100+ km a week is something I look forward to.
I would like to run, but I'm horribly prone to shin splints, so no-impact is important.
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- + - ° GiRLie GeeK ° - + - °
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Therell be days/When Ill stray/I may appear to be/Constantly out of reach/I give in to sin/Because I like to practise what I preach