What makes you so tired you can’t sleep?

Too tired to sleep may be overworked, nervousness, neurasthenia and other causes, need to be specifically analyzed.
1. Overfatigue: mainly due to excessive fatigue, the body’s blood oxygen content decreases, so that the body’s metabolism slows down, the accumulation of a large number of wastes in the body can not be discharged, adverse stimulation of the muscles, leading to limb soreness and discomfort, although the body is very tired, but the brain is still in a state of excitement, there is a mismatch between the brain and the body’s degree of excitement, resulting in a short period of time can not fall asleep.
2. Mental tension: such as daytime work is too intense, too much pressure, to sleep at night when the spirit still can not relax, the brain is still in a state of high excitement, will also lead to sleep.
3. Neurasthenia: due to certain long-standing mental factors, such as anxiety, depression, etc., causing excessive tension in the brain’s functional activity, which produces a weakening of mental activity. The main manifestation of easy excitement and rapid fatigue, such as dizziness, headache, brain swelling, insomnia, dreamy.
There are many reasons why you are tired and can’t sleep, and if you continue to be unrelieved, it is recommended that you consult a doctor in time except for organic lesions to avoid delaying your condition.