Sleep disorders : the tinted lenses, the solution for those addicted to their laptop ?

Health 16 December, 2017


Published the 16.12.2017 at 11: 35 am


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The French spend on average 5.7 hours per day in front of screens and 23% of them consult their smartphones before sleep. This new trend, harmful to health, has sleep disorders, important, dry eyes and risk of macular degeneration related to age (AMD). Melatonin, the sleep hormone, regulates, in effect, the rate accounts and increases in the evening with the dim light, to signify to the body that he will soon enter the period of sleep. The blue light emitted by phones, tablets, computers and the tv shakes then this process and increases alertness. Difficult after this to relax and sleep well.

As reported in the site EurekAlert, the team of the Medical Centre of the University of Columbia in the United States, headed by professor Ari Shechter, estimated that the selective blocking of blue light in the hours before bedtime would improve sleep for people with insomnia. In sum, the use of lenses or of tinted glasses in the evening, would reduce the effects of blue light on people with serious sleep disorders.

To support their theory, the scientists recruited 14 people suffering from insomnia. For seven consecutive nights, participants wore either tinted lenses that block blue light, lenses placebo-transparent for two hours before bedtime. The researchers found that the subjects had about 30 minutes of extra sleep when they wore the tinted lenses unlike lenses transparent. Participants also reported a duration, a quality and a strength of the sleep most important, as well as an overall reduction in the severity of insomnia.