Do you get out of bed early in the morning, refreshed and ready to take on the day’s challenges? Or do you slap the snooze alarm till the very last minute and drag your tired body to work? If you’re a morning person, be joyful: your circadian cycles, or natural sleep patterns, correspond to typical work schedules and school dismissal hours.

According to a recent study published in the journal Molecular Psychiatry on June 7, 2021, being a night owl is inconvenient because you perform better in the afternoon and evening and remain up late. The researchers used sleep data from wrist activity trackers worn by over 85,000 UK Biobank Study participants, which has detailed genetic and health information on over half a million Britons. Researchers linked sleep data to mood self-reports and discovered that persons who have a disrupted sleep cycle are more likely to experience depression and anxiety. The health problems associated with being a night owl are likely the result of being one living in a morning person’s world, which disrupts their body’s circadian rhythms, according to Kirsten Knutson, an associate professor of neurology and preventive medicine at Northwestern University Feinberg School of Medicine. Meanwhile, Dr. Jessica Tyrrell, a senior lecturer at the University of Exeter Medical School in the United Kingdom, discovered that having a higher misalignment was associated with a greater risk of depression.

Finally, there’s the chicken-and-egg problem, which is common in research that can only demonstrate a correlation rather than a causal link. Depressed persons are also more likely to have abnormal sleep cycles, which will require further research in the future.