There are negative effects of not getting enough sleep each night. Not getting enough sleep each night can lead to obesity, heart disease, and illnesses.
Research has proven that people who get less than seven hours of sleep each night are 30 percent more likely to be obese. Not getting enough sleep affects the flow of hormones that regulate hunger and satiety, which can cause a person to eat more. Sleepy people are also more likely to eat high-fat and high-calorie foods to give them energy.
Women that get less than five hours of sleep each night are more likely to develop hypertension, which is a leading cause of heart disease. When a person doesn’t get enough sleep, their body produces more stress hormones and other substances that would increase inflammation, which increases the risks of heart disease and stroke.
People that get less than five hours of sleep each night also have two and a half times the risk of getting diabetes when compared to people that sleep for seven or eight hours each night. Not getting enough of deep sleep decreases the ability to regulate blood-sugar levels.
People that are sleep deprived often feel cranky because that would make the amygdala, the part of the brain that process emotional events, to go into overdrive and the prefrontal cortex, the part of the brain that regulates reasoning, to become deactivated and this would make a person feel less stable than usual. Sleep deprivation makes the brain unable to put emotional experiences into context and produce rational responses.
Sleep deprivation affects how well the body fights infections and determines how well the body produces antibodies after a vaccination. While a person is sleeping, the body produces cytokines, chemicals that help the immune system fight off infection and disease.