According to the research, it was already a well-known fact that the loss of sleep, or sleep deprivation involving nocturnal wakefulness, led to cognitive and behavioral dysregulation and how our brains functioned the other day. However, recent findings reveal that changes in cognition and behavior occur when the individual stays awake at midnight.
From an evolutionary perspective, it's relatable that humans were better hunters during the day than at night. While at night, it was better to get some rest. However, fearing the risk of getting hunted during the night was inevitable, with which scientists associate the increased negative stimuli at night, Science Alert reported.
"There are millions of people who are awake in the middle of the night, and there's fairly good evidence that their brain is not functioning as well as it does during the day," says neurologist Elizabeth Klerman from Harvard University.
"My plea is for more research to look at that, because their health and safety, as well as that of others, is affected."
Klerman reveals that the circadian rhythm influence on brain activities changes over 24 hours which affects the way we process our experiences and respond to the outside world.
Basically, we get to respond more positively during the day than we do at night due to the fact that the circadian influence peaks in the morning and is at its lowest at night.