We all know that we need to get a good night’s sleep, but have you considered the idea that there might be such a thing as too much sleep?
Well, scientific minds immeasurably superior to ours have thrashed out the research and come back with a conclusion – yes, another one – on the optimum amount of sleep that adults need in order to function properly and keep the brain fit and firing on all cylinders.
So, the official guidance from the NHS suggests that we need between six and nine hours of sleep each night, but we all know that we can function – and sometimes feel great – on less than that.
People who sleep for less than 4.5 hours and people who sleep for more than 6.5 hours were found to be more at risk of cognitive decline, they discovered.
Of course, we should remember that all of those people also struggled with poor quality of sleep.