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Lack of sleep makes one stingy over time

Lack of sleep makes one stingy over time

A new study finds that lack of sleep or sleep deprivation makes one stingy or less generous over time. According to a recent study, even seemingly unimportant factors like recent sleep quality might have an impact on your willingness to assist others on any given day. It has been shown that lack of sleep causes generosity to decline.


Three distinct methods were used by the researchers to measure how compassionate people were deprived sleep. In the first experiment, 21 volunteers were denied sleep for 24 hours. This is before being asked whether they would be inclined to assist in a variety of situations. Situations such as carrying a stranger’s shopping bags, giving money, etc.

After a typical night’s sleep, they invited the subjects to complete the altruism questionnaire again. Using fMRI imaging, the researchers also looked at the levels of brain activity among the 21 subjects.

Next, prior to completing the same questionnaire, 171 volunteers who were recruited online kept a sleep diary. The researchers discovered that participants who were fatigued performed worse on the altruism questionnaire in both experiments.

This held true regardless of the empathy traits of the participants or whether the person they were expected to assist was a stranger or someone they knew.

Finally, the researchers examined more than 3.8 million charitable donations made in the US. This is before and after the changeover of the clocks for summer. The implication is that it results in one hour less of sleep for everyone. Donations fell by 10% in the days after the time change as compared to the weeks before and after.

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Sleep deprivation and social cognition

An analysis of fMRI imaging data shows that sleep deprivation appears to be linked to decreased activity in the part of the brain associated with social cognition, which governs our interpersonal interactions with others.

Only the quantity of sleep was correlated with the change in brain activity and not the quality of sleep. The good news is that this effect is transient and goes away soon after we resume our regular sleeping patterns.


Implication of the research

Sleep is essential for many facets of our health and well-being, as has long been known. This was memorably illustrated in 1959 when American DJ Peter Tripp broadcast live from Times Square in New York for 201 hours straight. Randy Gardner, a kid who stayed awake for 260 hours (almost 11 days) for a school science fair project, broke Peter’s record in 1964.

Peter and Randy seemed to be handling their trials well. However, when the difficulty increased, they started to fumble over their words, occasionally become disoriented, and had trouble doing straightforward activities like reciting the alphabet.

Both experienced striking hallucinations. Peter thought a desk drawer had caught fire after he noticed cobwebs in his shoes.

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We now understand that sleep deprivation is connected to mental health issues like psychosis and hallucinations. Despite the fact that Peter and Randy appeared to bounce back from their ordeals, research indicates that chronic sleep deprivation can cause neurological issues that last a lifetime.

A 2015 study examined the incidence of fatal traffic accidents in the US the day after the clocks changed to summer time. It implies that when we lose an hour of sleep, it is linked to a substantial rise in accidents.


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Inferences drawn by psychologists shows that lack of sleep makes one stingy or less generous

Kindness and generosity, according to psychologists, are components of our social cognition, a complex system of mental operations that governs how we relate to others and choose how to behave toward them.

These choices are made in light of many variables. The quality of our decisions, how impulsive we are, and notably our emotions and our ability to control them are all impacted by how well we sleep.

This includes our memory, including all parts of our remembering of prior circumstances. It makes sense that our willingness to give money would be sensitive to sleep as well.

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