In 1900, people generally slept nine hours per night. This went down to seven hours per night in the 1970s and declined further until today.
Lack of sleep is connected to loss of energy, anxiety, poor concentration, reduced attention to detail, decreased learning ability, and motor vehicle accidents.
How has sleep, which once came so naturally, become a crisis? What’s causing modern sleep problems? Researchers discovered that the most common culprit is in plain sight—tablets, smartphones, backlit e-readers and computer screens.
These devices emit light, especially blue light that disturbs biochemical processes that encourage sleep. You should switch such devices off at 9pm to stop their blue light interfering with levels of sleep-inducing melatonin.They also increase exposure to electromagnetic radiation, which is connected to headache, insomnia and confusion. The radiation from cell phones interferes with brain centers that secrete hormones and influence several aspects of body function.
Our bodies pay a price from surrounding ourselves with tablets, smartphones, tablets and light-emitting gadgets— the price is lost sleep.