Swimming is great for the body. I'm a horrible swimmer though.
Something else, another suggestion-become proficient using the mouse in your off hand. In a previous life I was a draftsman, and the CAD program we used was really facilitated by using the mouse with your left hand for the menu pull downs and your right hand to use the arrow keys through the menus.
I don't know about trading with your offhand if you're scalping pennies. But you might try it after market or during research, etc. I think it took less two 2 weeks to improve the fine motor skills enough to really use it well for CAD. I can use either, and if a hand aches a bit I just switch.
André
Something else, another suggestion-become proficient using the mouse in your off hand. In a previous life I was a draftsman, and the CAD program we used was really facilitated by using the mouse with your left hand for the menu pull downs and your right hand to use the arrow keys through the menus.
I don't know about trading with your offhand if you're scalping pennies. But you might try it after market or during research, etc. I think it took less two 2 weeks to improve the fine motor skills enough to really use it well for CAD. I can use either, and if a hand aches a bit I just switch.
André