Sydney: Based on a new fitness trend sweeping the UK, the latest running craze is all about one thing - darkness.
And you don`t even have to get up at the crack of dawn for it. In fact, they`re at night and take place in pitch black with only a dimly lit head-torch to guide the way, the Sydney Morning Herald reported.
The names of these new events, dubbed " dark races", range from cute (the "Moonlight Flit"), to cheeky ("Wild Night Run") to frankly, a little scary ("Night Terror").
While they`re yet to take-over from Australia`s still-healthy obsession with commando-style courses (more than 50 are scheduled this year), it`s likely they`re not far away.
Australia already has ultra-marathons that happen well into the night - thanks to distances like 100 kilometres.
Associate professor Shawn D. Youngstedt from the department of exercise science at the University of South Carolina has found that - contrary to popular belief - late-night exercise doesn`t disrupt sleep.
Furthermore, that the two hormones which are important for energy metabolism (cortisol and thyroptopin) also peak in the evening.
And because our body temperature is at its highest at night, our joints and muscles are up to 20 per cent more flexible.