It goes without saying that we all need to get proper amount of sleep each night to stay sharp the next day. Reading at night can be a lot of fun, but did you know that your Kindle or iPad could be contributing to your sleep issues? A recent study has shown that people who use e-readers and tablets at night sleep fewer hours. The blue glow emitted by these devices can mess up your body’s natural cycle.
During a two-week study, 12 participants used e-books and printed books for four hours before bedtime. The iPad readers experienced reduced levels of melatonin, which plays a role in inducing sleepiness. Penn State and Harvard universities are behind this study. I would love to see more data on this, but the effects of blue light on the human body are well known.
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