1, grumpy: when people focus on doing something, if interrupted because of unexpected interference, will produce negative emotions; if sleep deprivation, this negative emotion will be more amplified. 2, headache: scientists still can not find out the reason behind, but there are 36 to 58% of sleep deprived people, will wake up with a headache symptoms. 3, learning ability is reduced: short-term memory is an important key to determine the effectiveness of learning, sleep deprived people, short-term memory capacity will be reduced, also affect the learning effect. 4, weight gain: people who do not get enough sleep will have hormonal imbalance in their bodies, not only will their appetite increase, but they will want to eat more high-calorie food, and at the same time the ability to control impulsive behavior will be reduced, these factors add up together and lead to rapid weight gain. 5, poor vision: the less sleep you get, the more likely you are to have visual lapses and even hallucinations. 6, heart disease: According to research, compared to people who sleep 8 hours, people who sleep only 4 hours a day will have much higher blood pressure, and therefore prone to heart disease. 7, slow reaction: lack of sleep, you will also make your reaction to external things become slow. 8, prone to disease: long sleep, the body’s immune system will decline, prone to disease. 9, investment mistakes: According to research, sleep-deprived people make high-risk investment decisions, resulting in financial losses. 10, urine becomes more: when people sleep deeply, the body will slow down the production of urine; but if you do not get enough sleep at night, you will have the problem of “excessive nighttime urination” and must go to the toilet frequently. 11.Lack of concentration: If you do not have enough sleep, you will not be able to concentrate and you will be easily distracted. 12.Weakness of vaccine effectiveness: As mentioned above, lack of sleep will lead to lower immunity of the body, so if vaccination is given at this time, the effectiveness will also be greatly reduced. 13, slurred speech: According to research, if you do not sleep for 36 hours in a row, you tend to repeat the same words, slow, slurred speech, sometimes very much like a drunken person talking. 14, the cold on the body: If you are not three times, you are infected with a cold, it may be a lack of sleep to blame. Studies show that people who sleep less than 7 hours a day for two weeks in a row have three times the risk of catching a cold than those who sleep more than 8 hours. 15, more gastrointestinal problems: lack of sleep, easily caused by inflammatory bowel disease (inflammator bowel syndrome). 16, high risk of car accidents: In fact, sleep deprived people driving, just as dangerous as drunk driving, but is often ignored. 17, lower libido: lack of sleep will reduce the body’s G pills hormone secretion, resulting in lower libido. 18, lower pain tolerance: There have been studies that show that if you do not get enough sleep at night, the body’s sensitivity to pain will increase, while the tolerance for pain will decrease. 19, diabetes risk increased: lack of sleep will affect the metabolic function of the body, therefore increasing the risk of diabetes. 20, do things wrong: the lack of sufficient sleep, resulting in poor mental health, will also increase the rate of errors in work. 21, high risk of cancer: about the association between sleep and cancer, research is still in the early stages, but the results so far, sleep deprivation does increase the risk of cancer, especially colorectal cancer and breast cancer. 22, easy to forget: The less you sleep, the more likely you are to forget, and the risk of Alzheimer’s disease increases in old age. 23, genetic interference: the latest study in 2013, lack of sleep will interfere with the normal activities of genes, if less than 6 hours of sleep a day for a week, there will be more than 700 kinds of genes with abnormal activity, including genes related to immunity and stress. 24, depressed mood: clinical studies by scientists show that people who sleep well at night have a more positive mood; if the sleep quality is poor, it will also affect the mood of the next day’s work. 25, high risk of death: the biggest risk of long-term sleep deprivation is that the risk of death increases significantly in a short period of time.