If no amount of coffee seems to help you feel fresh and alert in the morning, you may be able to blame your genes.
According to a new study by the genetics company 23andMe, the preference for being a "morning person" — someone who enjoys waking up early and going to bed early — rather than being an "evening person," who tends to stay up late at night and desperately reaches for the snooze button when the alarm goes off in the morning, is at least partially written in your genes. Researchers at the company found 15 regions of the human genome that are linked to being a morning person, including seven regions associated with genes regulating circadian rhythm — the body's internal clock.
"I find it interesting to see how genetics influences our preferences and behaviors," said study co-author David Hinds, a statistical geneticist at 23andMe, a privately held genetic testing company headquartered in Mountain View, California.....
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