We have become a nation of sad pill-poppers. The British, once Churchill’s ‘lion-hearted nation’, are now among the most depressed people in the developed world. The UK ranks joint seventh out of 25 countries, with double the rates of Poland, Estonia and the Slovak Republic. According to the Children’s Society, English children are more miserable than those in 13 other countries such as Ethiopia and Algeria — despite the widespread introduction of ‘wellbeing’ lessons.