Hobbies that require you to use several different senses in non-routine ways and to make fine distinctions within one sensory system can stimulate your brain effectively. Fly fishing, for example, puts you in a novel sensory environment (a river), requires you to think like a fish and to pay attention to the time of day, the feel of the water, and the types of insects around you. Some other examples are archery, photography, woodworking, and cooking.
Discover New Excitement
You can master a new gadget such as computer, video or still camera, telescope, ham radio, musical instrument, windsurfer, or snowboard. Learn touch typing. If you still hunt and peck, it slows down your enjoyment of the computer. Practicing touch typing engages the brain in a different way. It offers all the neurobic benefits of integrating your tactile, spatial, and visual senses without having to be blindfolded.
Build a small model airplane or car while wearing a patch over one eye. Because you lose depth perception, your brain has to rely on new cues. Your sense of touch and spatial skills are required to fit small pieces together.