The fashion for chocolate-drinking in England faded more than two hundred years ago, to be replaced largely by tea; though cocoa-drinking at bedtime is still observed amongst older people here and in the Netherlands, where it has been associated with longevity. There have been enough studies of the effect of these beverages on blood pressure to warrant a systematic review, and the news is that cocoa lowers blood pressure whereas tea doesn’t. What about a nibble of chocolate after dinner?

Define “frailty