Why do I feel groggy when the weather is hot?

"Computer syndrome" was put forward in recent years. Computer monitors are bright, flashing and radiating, which can easily lead to temporary myopia when viewed for a long time. At the same time, due to the reduction of the number of blinks, visual fatigue, dry red eyes, burning sensation, eyelid and forehead pain during operation. When using a computer, because people's sitting posture rarely changes, it is easy to cause back muscle fatigue for a long time, and in severe cases, it will cause strain on cervical and lumbar vertebrae. Working on the keyboard repeatedly every day, long-term, intensive and repeated excessive wrist activities will gradually form joint injuries, which is often called "mouse hands". In the process of operating the computer, the attention is highly concentrated, the eyes and fingers move quickly and frequently, and the body and mind are overwhelmed, resulting in dizziness, insomnia, dreaminess, neurasthenia, decreased immunity and other symptoms. At the same time, facing computer work for a long time will also have a certain impact on people's psychology. Excessive Internet access can easily lead to social isolation, depression, loneliness, pessimism and other psychological barriers, and even induce some psychological diseases. The harm of "computer syndrome" to body and mind is cumulative, and effective prevention should also start from life in order to avoid causing more serious diseases. I hope these are helpful to you!