Youngsters may recognize the exuberant words of Tickle Tickle by Dakari Hru (""me papa tickle me feet he call it `finger treat' me scream and run each time he come me papa tickle me feet""), first ...

A machine designed to create the optimal stimuli for tickling feet could serve as a stress reliever by inducing uncontrolled laughter, say researchers. The device is battery-operated and can be fitted ...