treadmill

“I didn’t keep a journal anymore; I wasn’t writing. … I was on this sort of rock ’n’ roll treadmill, which can be exciting, but is also exhausting.

And they might increase the gradient and speed on the treadmill until you feel your heart beating faster and your breath quickening.

“After a while, you raise your hand and say, ‘I don’t know how long I can be on this treadmill.’”

At the gym, you can replicate this using either a motorized or non-motorized treadmill.

There are four pools - one to swim in, a cold plunge, hot plunge and another with an underwater treadmill, the depth of which can be adjusted as required.