The phenomenon of carbon monoxide poisoning after falling asleep is usually not felt.
Carbon monoxide is an odorless and colorless poisonous and harmful gas, the human body can not feel, it will lead to poisoning mild poisoning will appear nausea and vomiting, headache, body weakness, severe patients will appear coma, loss of consciousness.
Carbon monoxide poisoning after sleeping is generally unconscious, even if it is found in time there may be dizziness, headache, nausea, want to vomit and other symptoms occur, serious cases will also lead to coma, unconscious, may be due to the lack of oxygen in the body leading to limited action and can not help themselves.
Inhalation of carbon monoxide poisoning in the air after sleeping, the patient will be asleep and often do not feel, many people in the next day when they are found to have been unconscious or even life-threatening. If you find someone around you with carbon monoxide poisoning should be taken to a place with good air circulation and sent to the emergency department of the hospital in time for treatment.