Genes could help in determining whether a person likes to rise early in the morning or not.
Researchers, in affiliation with 23andMe, Inc. recently worked on the DNA of 89,283 individuals, and found that genes could show some specific variations more frequently in the people, who self-identify themselves as early risers or morning people. They found 15 different spots in the genetic makeup that can vary between morning people and self-reported evening people. Seven of those variations were found near genes that are involved in controlling a person’s daily cycle, known as circadian rhythm.
Study also showed that many people, i.e. more than 50% consider themselves as night people. Adults and females represent more numbers as morning people, i.e. in the study 39.7% morning people were males and 48.4% were females. If a father is a morning person, his son has 1.9 times higher chances of becoming a morning person and his daughter has 2.4 times higher chances of becoming a morning person. Moreover, morning people suffer less from sleep apnea or insomnia as compared to night people; though, genes or genetic variations may not have any role in this aspect. On a further note, night people have more chances of getting depression as well as other health issues such as obesity.
“With the information we have, we can uncover the genetics behind a variety of conditions and diseases, and hopefully reach a better understanding of how we differ from one another,” noted 23andme senior researcher David Hinds in a press statement.
Hu, Y., Shmygelska, A., Tran, D., Eriksson, N., Tung, J., & Hinds, D. (2016). GWAS of 89,283 individuals identifies genetic variants associated with self-reporting of being a morning person Nature Communications, 7 DOI: 10.1038/ncomms10448