P.E. did expose me to many sports. I didn&#x27;t really like any of them; some were more tolerable than others, but that&#x27;s hardly equivalent to enjoyment. I don&#x27;t dislike physical activity in itself (though it was practically impossible to maintain any consistent volume before my sleep apnea was treated), and I think I understand at an intellectual level why &quot;people enjoy sports&quot;. But empirically the reward processes haven&#x27;t happened for me.<p>Anyway, the reason I&#x27;m harping on this is that vague, noncommittal advice like &quot;find a sport you enjoy&quot; is exactly the sort of thing that a true exercise prescription ought to be able to avoid. Doctors don&#x27;t pull out the Rx pad and write down &quot;find an anticonvulsant that works for you&quot;.