Numb Thumb? Try These Simple Exercises If your thumb feels numb frequently, specific exercises can improve circulation and relieve the sensation. Try these three exercises with a rubber band for resistance: 1. Extension: Place the band around your fingers and thumb, then stretch your thumb outward. 2. Flexion: With the band in place, bend your thumb inward toward your palm, then release. 3. Abduction: Stretch the band by moving your thumb away from your fingers. These exercises strengthen thumb