Electric Balance: How a magnetic field works to keep you upright

You know that it’s harder to balance when you close your eyes. The question is why? 

We know that the optic nerve sends signals to the brain, that’s how we see. So if you look at the optic nerve as a current-carrying wire, it would produce a magnetic field. And where two magnetic fields overlap, there is a resultant force.

wirefor.png

In this case, when currents flow in the same direction, the magnetic force is inward. And I believe that this resultant force is a portion of what we use for balance. If you close your eyes, you have no [or significantly less] information to send from the optic nerve to the brain. This would reduce the current, and thus reduce the strength of the magnetic field.

Sources: 

  1. https://www.futurity.org/poor-vision-may-lead-to-loss-of-balance/
  2. https://www.visionaware.org/blog/visionaware-blog/a-new-study-examines-vision-impairment-balance-problems-and-falls/12
  3. http://www.ux1.eiu.edu/~cfadd/1360/30MagSrcs/HmwkSol.html

 

One thought on “Electric Balance: How a magnetic field works to keep you upright

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s