[thedoc (OP)]

William Perkins asked the Naked Scientists:
   
I am 96 years old and have a balance problem as most elder people have. I would like to purchase a small electronic gyro that I could possibly strap to my head, hoping that the gyro would enable me to walk straighter .
What do you think?

[chris]

I'm not acquainted with head-mounted gyroscopes - do you have any examples of things like this being used by people?

[Colin2B]

I don't think it would help.
Most balance problems are not caused by an inability to hold the head level.
Problems with the sensors in the inner ear could be the cause, but there are many others including TIAs and small vessel disease.
One common problem that can be addressed is failing strength in leg and ankle joints and the associated loss of proprioception. This becomes a vicious circle because people walk less as a result. It can be improved by practicing balancing on one leg. Hold onto a chair and balance on one leg then the other for a few mins. Work up to balancing without the chair.
Exercises like Pilates can help, particularly with changes of posture that can make balance more difficult. Some local authorities are offering free exercise classes for older citizens.
I hope you find a way to improve your balance.