Five signs that show you are not getting enough sleep

In our seemingly always-on society, there's great temptation to shortchange sleep. But sleep is a vital driver of every physiological system in the human body, and when we're deprived of shuteye, health and wellbeing can suffer in many ways. Sleep is essential for the growth of muscle, repairing tissue, and synthesising hormones, among other functions. According to Express.co.uk and Hope Bastine, psychologist and SIMBA Sleep's 'Think Well Sleep Well' ambassador, these are five health concerns that could be caused by lack of sleep: