Thumb-tracking: Hold your thumb out 1 to 2 feet in front of your face. As you look at your thumb, turn your head from right to left, then left to right, then up and down. Increase speed gradually. Do the exercise for 90 seconds. Repeat the exercise four times a day.

Target-change: Pick two objects (targets) that you have to turn your head from left to right to look at. Look at one object, blink your eyes, and then turn your head quickly to look at the other object. Go back and forth quickly between the objects. Repeat several times per session, at least two sessions per day.

Lying-to-standing: Move from a lying-down position on a sofa or bed to a standing position as quickly as possible without falling. Get up toward both right and left sides quickly. Do the exercise five times on each side per session, at least two sessions per day.

Tightrope: Walk heel to toe as if you are walking on a tightrope or a line. Do the exercise in a hallway with available support, such as a wall or railing. For 30 minutes per day, practice walking 10 steps at a time without using a support.

Walking turns: Walk toward an eye-level target on a wall (such as a picture). As you get near the wall, turn your body to one side but keep your eyes and head locked on the target. When your body cannot move any farther, close your eyes and quickly turn your head to face forward. Repeat the exercise five times for each side, turning your eyes and head to the right and left sides. Slowly increase your speed for at least 30 minutes per day.

Ball toss: While standing or sitting, toss a tennis ball at least 3 feet above your head and catch it. Practice for five to 10 minutes per day. When you can do the exercise easily, try it while walking.