[eye30]

Scientists found that those who suffered from “microbleeds” were more likely to have trouble balancing on one leg.

A simple balance test may be able to show if you're at risk of a stroke - BT

I found the comments at the end funny

[Doggie 1]

I must try it.
I think.   
I like this bit in the comments: "The British sense of humour doesn't exist anymore, 99% of it is illegal."

[Dazzler]

Try balancing on one leg while you have a stroke.. now that is difficult! 

[kittikat]

Have to disagree with this. I can't stand on one leg for moe than a few seconds, but it is because I had meningitis when I was two and am almost deaf in one ear.  The little hairs in my cochlear have died and that has ruined my sense of balance.

Perhaps they forgot to take other reasons into account.