"This is actually one of a kind," said Jennifer Schofield, founder and creator of Danz Insanity. "We wanted to create fun, and we ended up basically with a nightclub - disco ball, crazy lights ...

"Without change, it becomes insanity—doing the same thing over and over, expecting different results. Whether they recognise and act on that is still uncertain, but something clearly needs to ...

Faculty of Chemistry, University of Wroclaw, ul. F. Joliot-Curie 14, 50-383 Wroclaw, Poland ...