Numbness in Hand during Cardio

I've been doing intervals (Tabata Protocol) on a Stairmaster elliptical machine for a couple of months now. Lately, after about 15 minutes or so, my right hand has been getting SEVERELY numb. Just the right hand, not the left. Any ideas why this is happening? It's not a big deal, just sort of uncomfortable.

You might be developing Carpal Tunnel. Try a wrist support with a rigid stay built in. Wal-greens or CVS carries them.

You might be developing Carpal Tunnel. Try a wrist support with a rigid stay built in. Wal-greens or CVS carries them.

If you take vitamins, make sure they include plenty of b6.