Ady Ambler, London, UK

Occasionally my ears "burn", becoming very warm to the touch and glowing red. It can be just the left or the right ear, or both, that are affected.

I suspect it is something to do with blood flow and cooling, but why the variation and what prompts it? And, of course, I do not believe the old myth that "someone is talking about me".

Geoffrey Clark, Douglas, Isle of Man

I've heard that your brain calculates the position by the time difference between the sound reaching one ear and the other. However, i'm sure this is wrong! If there's a loud bang a short distance behind you, how do you know it was behind you? The sound would reach both ears at the same time, so the source could be infront of you, or even above you!

I am fortunate enough to be able to wiggle my ears. However, I can only wiggle both at once, not one at a time. Why?

Peter Slessenger, Reading, Berkshire, UK

(Image: djeyewater, stock.xchng)