Three children who needed dropping off and picking up constantly; the house in disrepair; a partner often away on business and an unpredictable workflow. I was exhausted. The children, though, were fizzing with energy. Where did it come from? Observing their behaviour led me to one answer: not wearing a lot (which makes it all the easier to run and jump) and not being indoors much. So, worn down by round-the-clock chores and having tried every energy snack, I followed suit. Keeping cool was the answer. Cold therapy is attractive as it is accessible and costs little or nothing: living in lighter clothing and keeping the heating down are simple things everyone can do [File photo]