Stress has been linked with a string of issues including depression, dementia and cancer. But Professor Ian Robertson, the author of the book, The Stress Test: how pressure can make you stronger and sharper, argued that the right amount of stress can actually increase our productivity. Stress causes an area in our brain to create neodrenaline, which eases the communication between the different parts of our brain. As long as we have the right amount of the chemical, stress can push us to perform better. According to Professor Robertson, “there’s a sweet spot in the middle where if you have just the right amount, the goldilocks zone of noradrenaline, that acts like the best brain-tuner.” (independent.co.uk)