你是起床困难户吗？这要怨你的基因

As aforementioned, Dr. Breus notes that your circadian rhythm and sleep drive are "determined specifically by the PER3 gene." David Hinds, a statistical geneticist at 23andMe, agrees that it comes down to DNA. "Genetics influences our preferences and behaviours," he said in an article from Live Science.

见：

Can't Get Up For Morning Workouts? Your Genes May Be to Blame

Can't Get Up For Morning Workouts? Your Genes May Be to Blame

https://www.yahoo.com/lifestyle/apos-t-morning-workouts-genes...

Not A Morning Person? Blame Your DNA. | HuffPost

https://www.huffingtonpost.com/entry/morning-person-dna-genes_us...