Disadvantages of treadmills compared to running?

Question by Drew: Disadvantages of treadmills compared to running?
I have a treadmill and I can tell it has helped my breathing and stamina, but what are some disadvantages of a treadmill compared to just running at a park or something?

Best answer:

Answer by speedoboy01
it is harder on your joints, and just isn’t as nice as running outside

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