I don&#x27;t know if it will actually slow down aging (which is a very wide concept). But I do have a &#x27;proof of 1&#x27; that cycling a lot will wear out your knees and hips prematurely.<p>Bodies are like machines, if you use them a lot they will wear out because of over-use. If you use them very little they will atrophy.<p>The balance is probably somewhere in the middle, yes, exercise but don&#x27;t overdo it.