'Your body doesn't know what day it is': the people who work out on Christmas Day
It’s an early start for Nick Braund on Christmas morning. The 35-year-old tech entrepreneur rises while the sky is still an inky black and the festive lights are twinkling in the darkness. But it’s not to put presents under the tree, or put the turkey and trimmings in the oven: Braund is heading out this year, as he has every Christmas morning for the past decade or so, for his 15k run.