I'm 76, soon to be 77. 2023 is my best year biking. I retired in 2011 and each year my yearly biking has been good. This year I rode 9800 road and Zwift miles. I rode 312 days. I'm a recreational rider. Average ride is around 36 miles but I have no problem with metric centuries. All this to say, stay active, eat wisely and keep your weight under control. I also lift light weights 5 days a week for upper body strength. I have had serious crashes over the years but recovered.