Person holding loo rollI write a lot about both brain health and fitness for work. Coffee might be great for both, I’ve learned; I’ve also been surprised by how linked your muscles might be to your dementia risk. But only recently did I read that your poop timing might affect your mental sharpness and your workouts, too. Yup – a paper published in the journal Sports Medicine and Health Science this month tested triathletes using something called a Stroop test (a cognitive test which asks you to, say, separate the word “blue” from the colour of the font it’s written in quickly) following laxative use. This