“The trouble is, you were born 100 years too late!” is a refrain familiar to those of us who, back in the day, might count themselves the last of the “classic” explorers. We’re talking about those in the mould of Mary Kingsley and Dr Livingstone, who brought word of whole landscapes new to us.
We all think we know what we should be doing to keep our brains fit, whether it’s learning a new language, socialising or getting enough sleep. Among this catalogue of habits, eating a juicy steak is unlikely to be at the top of your list.