They call this approach Morning by Design, and it takes into account things like lifestyle, diet and exercise habits. Taking sleep drive into account, Breus worked with the global grooming brand Braun to make recommendations for how people can better customize their morning routines, based on their sleep chronotype. It never took into account sleep drive.” He says sleep drive is predetermined by the PER3 gene and the buildup of a naturally-occurring chemical called adenosine in the body. “What was so fascinating,” explains Breus, “was that the previous conceptualization only looked at timing, your circadian rhythm. That means, the vast majority of people - in this case, bears, who are most energetic in midday - were not accurately reflected in the old way of thinking. And somewhere between 10-15 percent of people are dolphins. It turns out that roughly 15 percent of people are lions (the category more commonly known as “early birds”).
And I discovered that there were actually four different chronotypes: the early one, which I’m calling the lion the middle, which is a bear the late evening people, which are wolves and then there are the insomniacs, which are dolphins.” And when my methods for working with her weren’t working well, I dug into the literature to understand what was going on. And then I had a patient come in, who was a classic insomniac. “I used to think there were only early bird and night owl. “I used to think that there were only two chronotypes myself,” says sleep specialist and best-selling author Dr.
Sleep hacking tips: 7 ways to maximize your Zzzzz's 7 photos In fact, buying into it may actually be hurting our health. However, one of the nation’s leading sleep experts suggests that this prevalent belief is not entirely accurate. That theory has been around for ages, and lots of us probably identify with one of those two categories. Most people have traditionally believed that there are two sorts of sleepers: early birds and night owls.
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