ARE YOU MENTALLY FATIGUED?
Sadly, there is no simple test that can definitely say your brain is too tired for a long workout because, well, every brain is different. But Fifer says you should keep an eye out for a drop in motivation – especially if that lack of get- up-and- go doesn’t vanish once you start sweating. ‘ If you can’t get into a session, that indicates you may need to abort the run and try something different,’ she explains. Listen to your perceived effort level that day and adapt accordingly – mix up your training schedule and speed if you need to. It’s still a workout, after all.