Are you ticklish? Dr Emily Grossman shows you how to use the science of tickling to stop yourself squirming when you're tickled. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Why do we feel ticklish? Why does it make us laugh? It’s hard to pin down a scientific definition – or explanation – of tickling. It’s a complex phenomenon, involving a range of sensory and neurological elements, which means it’s hard to identify why it evolved. Is it socially significant? Or an alarm system, warning us of things crawling on our skin? Why can’t you tickle yourself? Dr Emily Grossman explains how your brain anticipates the movement of your hands, and suppresses the tickle response. Can you use the fact that you can't tickle yourself to stop other people being able to tickle you? Dr Emily Grossman, science presenter and educator www.emilygrossman.co.uk @DrEmilyGrossman Dr. Emily Grossman is an expert in molecular biology and genetics, with a Triple First in Natural Sciences from Queens' College Cambridge and a PhD in cancer research. She also trained and worked as an actress, and now combines her skills in her work as a science broadcaster and educator; teaching maths and all three sciences at all academic levels and explaining science for a wide range of TV and radio programmes. She recently completed a season as resident science expert on ITV's The Alan Titchmarsh Show, and was a member of the panel of experts for two series of Sky1's celebrity panel show Duck Quacks Don't Echo, hosted by Lee Mack. She has appeared as a science expert on ITV's This Morning, Channel 4’s Food Unwrapped, Sky News, BBC1's The One Show, and London Live’s Not the One Show, has been interviewed several times on Radio 4’s Last Word, Radio 5 live’s Daily Bacon, BBC World Service’s Newshour and LBC Radio, and is a regular guest on the Guardian Science Weekly podcast. Emily has hosted science events for the Academy of Medical Sciences and at the Royal College of Physici