Learn to use your “other” hand. If you’re right-handed, use your left hand for some daily activities. Start with brushing your teeth, and practice until you have perfected it. Try to work your way up to more complex tasks, such as eating. This is an example of a type of exercise that takes something you know and puts it in a new and demanding context. doing such an activity can drive plasticity on a large scale, as millions of neurons adjust to establish better control of your “other” hand.