01 You’ll make gains more sustainably 02 You won’t be able to move for F45 03 You’ll be given wings without the bull

Self-care will grow to encompass caring for the planet, too. Energy drink manufacturers will be having more jittery palpitations

To paraphrase Street, your workout will be brought to you by the letter F and the number 45. “This will be the year for F45 in the UK,” says Williams. That is, highintensity interval training with the camaraderie of Crossfit, but not the cultishness. (The F stands for Functional; 45 is the duration in minutes.) The Australian import has colonised every territory in its native country and is opening 35 US outposts per month. It plans to have over 500 studios in Europe by 2020, according to Williams: “And you thought Crossfit made a lot of noise.”