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Whether you are a night owl or an early bird, don’t bother fighting the impulse because it’s probably in your genes, a study has suggested.
Scientists have long known that all plants and animals – from lowly phytoplankton to homo sapiens – have internal biological clocks attuned to a 24-hour cycle.
But within this so-called circadian rhythm, individuals of some species, including humans, may have a natural preference for day or night.
Previous research had singled out genes with an unspecified influence on these rhythms.
A research team led by David Hinds of California-based biotechnology company 23andMe trawled the genomes of 89,283 people for clues.
The team compared the findings with responses to a web survey in which the same individuals were asked to indicate whether they preferred mornings or evenings.
The study, published in Nature Communications, reported a link between more than a dozen gene variants and healthy individuals who said they were at their best in the morning.
Read full, original post: Not being a morning person may come down to genes, study suggests
