“If your cup is almost empty (work has been wild and you’ve barely slept) then heading into the gym to wreck yourself on the assault bike or leg press will do your body more harm than good.”

This isn’t just Miller sharing something she thinks her followers want to hear - the science backs it up. While exercise is a stress-reliever in the long-term, in the short-term it raises the body’s stress response. Studies show moderate and intense exercise can raise cortisol levels – the key stress hormone. A 2014 paper also proves Miller’s point about our ability to recover during stress: researchers found that life stress impacted how muscle’s repaired after exercise over a 96-hour period. They recommended that “under conditions of inordinate stress, individuals may need to be more mindful about observing an appropriate length of recovery”.

How to exercise when you’re too busy? Maybe you should skip your workout