Not getting enough sleep is bad for heath. Depending on the research from the scientists, people who don't get enough seep are less willing to socialize （社交） with others. They are simply too tired to go out.
The researchers did a small study. They tested 18 young people who had good sleep after a sleepless night. The participants watched videos of people with neural （中性的） expressions walking towards them. When the person on the video got too "close" to them, they pushed a button to stop the video.
The participants kept the person at a distance of 60% further if they hadn't got enough sleep. They felt that their personal space was being invaded （侵占） . But when the participants got a good night's sleep, they allowed the person to get much closer to them.
The result shows that the less sleep you get, the less you want to socialize with others. In turn, other people may think you strange and stay away from you. So if you want to be a more sociable （喜欢与人交往的） and popular person, sleeping well might help.
