We think nothing of taking our cars in to have an annual service so why don't we do this for our bodies?  I am such a fan of Intermittent Fasting and, in particular, Doctor Valter Longo's latest research into ageing & longevity, (and how important a 5 day fast is at least once a year), that I decided to take myself off to a detox retreat to do a 5 day juice fast, something I find impossible to do at home for that long, despite being able to carry out the 5:2 very easily. My car had an annual service, now it was my turn!