In 1942, just 8% of people slept six hours or less per night. Today, that figure has soared to nearly half the population. What drives this alarming shift?
Neuroscientist Matthew Walker has dedicated years to sleep research, culminating in his bestselling book Why We Sleep, which took four and a half years to write. He warns of a "catastrophic sleep-loss epidemic" gripping modern society. So, why are we sleeping far less than we did 75 years ago? Walker outlines several key culprits.
Key Reasons for Our Sleep Deficit
Extended exposure to artificial lighting disrupts our natural sleep cycles, with screens exacerbating the issue. Work-life boundaries have blurred, but longer commutes mean less time for family, hobbies, or rest—sleep often gets sacrificed first. Factors like loneliness, anxiety, alcohol, and caffeine compound the problem, while some view chronic sleep shortage as a badge of success.
Shorter Sleep, Shorter Life
Walker's concerns are backed by robust studies: the less you sleep, the shorter your lifespan. Insufficient sleep is linked to numerous diseases. Does Walker practice what he preaches? Absolutely—he maintains consistent bedtimes and urges everyone to do the same, based on compelling scientific evidence. Yet he stresses broader change is needed in society, workplaces, and homes.
Discover the Book
Why We Sleep: The New Science of Sleep and Dreams is available from October 3 at Bol.com for €28.95.
