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 ...

The TickleFoot device stimulates the most ticklish spots of the human foot – for women it was found to be the centre of the arch of the foot, while for men it is slightly closer to the toes ...

Elvitigala’s team determined these spots by recruiting 13 people for a study that gauged reactions to foot-tickling.