I thought baseball was harmful to play. Such repetitive motion in throwing the ball, especially pitching. I think golf is loaded with trouble too because you're always doing the same difficult motions. Never played either much, and rarely had shoulder difficulty of any kind. Played tennis for decades and not one problem through playing that sport. Cross country skiing, hiking, swimming, snow shoeing, cycling, so much better for the body, rarely get injuries, would recommend those. Baseball sucks in so many ways. jmo Not that I picked sports much better. Both of my knees are screwed for life. One hockey, one work related. Probably hockey did a number on both of my knees. Been dealing with arthritis in my knees since I was 18-20. So around 40yrs. Oddly though because of the specific back and knee regimens I do (everything in the body is strangely related through nerve connections) my knee pain is less now and ability greatest its been in decades. I do rehab every day of my life.