There were lists of names everywhere and it made my skin prickle with sadness that we were all just passing through the gym.

BBC: South East Wales - Boxing Beats: Fighting Pretty

Vestiges such as the stumpy wings of flightless birds, and the hairs that prickle on human skin just like the rising hackles on furry mammals, are further testimony to our shared origins.

ECONOMIST: The evidence for evolution

Step 1 to 3 can be well practiced by using your mind, but when it comes to Step 4, take time for yourself, breath in and out, notice any discomfort in your body and breathe into this discomfort which is often experienced as coldness, stiffness, numbness, prickle, tightness etc.

FORBES: 5 Steps To Transform Your Life - Step 4