Please correct my English- Night owls Scientists have cast new light on the effects of sleeping late on our physical and mental health. Going to bed late can damage our health and even shorten our life. The study have found that night owls, people who go to bed late ,are more likely to suffer health problems. The problems include heart diseases,stroke diabetes, stomach and breathing problems etc.. These days more and more people are getting used to watch TV, tablet and smart phone before bedtime. More screen time is often associated with delayed bedtime, fewer hours of sleep and poorer sleeping quality. Because the light from the screens can trick our body thinking that it is still daytime. That will keep our brain active and upset our body clock. In addition , people who lack of sleep are at higher risk of suffering mental diseases ,such as depression and anxiety. Because sleeping late can affect and alter our brain chemistry. For instance, some people find it hard to concentrate on their work and study if they have a late night. As an old saying goes: “Early to bed, early to rise makes a man healthy,wealthy and wise.” It also explains why some people are emotionally stable and resilient than others.   If you want to live a healthier life, you should try to go to bed earlier. Thank you for your time!