Source: The Guardian, Mar 2018
Touch is the first sense humans develop in the womb, possessed even of 1.5cm embryos.
Touch is commonly thought of as a single sense, but it is much more complex than that. Some nerve endings recognise itch, others vibration, pain, pressure and texture. And one exists solely to recognise a gentle stroking touch.
scientists have learned that the optimum speed of a human caress is 3cm to 5cm a second.
McGlone says. “We are destined to cuddle and stroke each other at predetermined velocities.” The pleasantness encourages us to keep touching, nourishes babies and binds adults, and threads wellbeing into the fabric of our being.
Last year, researchers from University College London showed that slow, gentle stroking by a stranger reduced feelings of social exclusion.