They were right. After midnight the mind undergoes some dramatic changes: we are more likely to see the world negatively, to make
impulsive decisions and to exhibit risky behavior. This is why people are at greater risk of violent crime, including homicide at night.
There are also higher levels of substance abuse after midnight and more suicides at night. And it affects our food choices, making us turn to foods we should not be eating -- carbs, fats and highly processed foods.
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Source: The Journal of Clinical Psychology

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