Nature, nurture and the things being remembered

8. Morning Drowsiness
It makes sense that late chronotypes tend to be more tired and less alert in 
the morning, compared to how they feel during their prime evening hours.
A June 2014 study from Accident Analysis & Prevention, which tested 29 
graduate students on driving simulators, found that evening types were less 
attentive and more prone to errors at 8 in the morning than they were at 8 
in the evening. Morning types, on the other hand, were more consistent and 
drove relatively well during both times of the day.
The authors said their findings suggested that employers should tailor 
individual work schedules around employees' chronotypes to cut back on 
people having to drive or perform work-related tasks during "non-optimal" 
times.
9. Risk-Taking
Staying up late and sleeping in every morning is also associated with a 
greater tendency for risk-taking, according to a 2019 study in PLoS One. In 
general, the male participants in the study reported that they took more 
risks than the female participants. However, the female participants with 
evening chronotypes reported taking more risks than their morning 
counterparts.

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While taking risks isn't always a bad thing, it can sometimes lead to 
dangerous or unhealthful situations.
In a 2021 study in Europe's Journal of Psychology, authors noted that risk-
taking included "self-challenging" or socially accepted behavior like trying a 
new sport, standing by what you think is right, or performing in front of an 
unknown audience. Risk-taking also included dangerous or illegal behavior, 
such as fast driving, binge drinking, or stealing
—defined by experts as 
"negative risk-taking."
10. Shortened Lifespan
Even with all of this research, it hasn't been clear whether the health risks 
associated with being a late chronotype are substantial enough to make a 
measurable difference in people's lives.
However, a 2018 study published in The Journal of Biological and Medical 
Rhythm Research suggested that people who like to stay up late and have 
trouble getting out of bed in the morning have a 10% higher risk of dying 
sooner than people who have a natural preference for going to bed early 
and rising with the sun.