Don't Sit

     You don't have to sit on the cactus.  As a matter of fact, you don't have to sit that much at all.  If your job requires you to sit, at least stand up every hour or so and stretch and touch your toes and walk to get a drink of water or to go to the bathroom.  On your break, on your lunch, get up and move around.  At home, walk around the house, walk outside, walk down the block.  I firmly believe the more mobile you are now, the more mobile you will stay into your later years.
      Also, I am reading more and more about food additives, artificial sweeteners, GMOs and I really think that we need to make more natural food choices.  We should make 2/3 of our plate vegetables and fruits, with protein making up the last third.   Stay away from the artificial sweeteners, the soy and the corn additives, the food so processed you don't even recognize that it is food anymore.  Get back to basics.

At this rate, it might be better to eat the cactus...