Eye twitch is an example of fasciculation called blepharospasm. Here's how it works<br /><br />My kids' book, How To Be A Scientist, is out now:<br /><br />US: <br />UK: <br /><br />My book for adults, The Element In The Room, is available for pre order:<br />UK: <br />US: <br /><br />Visit my blog here: <br />Follow me on twitter here: <br />Buy nerdy maths things here:
