When the heater runs all night, the room temperature continues to rise. Due to this the air of the room loses its natural freshness. The air starts feeling heavy, the oxygen level starts decreasing and you may feel suffocation while breathing. This is the reason why many people feel dizzy, weak or headache as soon as they wake up in the morning.

The hot air from the heater absorbs moisture very quickly. Due to this, the nose becomes dry, throat becomes hoarse, cough may increase and breathing through the nose may become difficult. Such dry air increases the risk of falling ill in winter.

When the heater runs, the humidity in the room reduces, and this directly affects your skin. Due to this, the face starts pulling, the skin starts cracking, there is constant itching, the lips get cracked badly. People who already have dry skin face this problem even more.

The dry heat of the heater quickly affects the bodies of children and the elderly. Children may have dehydration, itching, restlessness and difficulty in breathing. Elderly people may face problems like shortness of breath, rapid heartbeat, increased cough. Therefore, do not run the heater in their room the whole night.

When the heater runs all night, there is a huge risk of fire in the room. This is the most serious danger. If the heater is left running overnight, an old or weak wire may heat up and cause a spark. The danger increases if clothes, blankets or anything else is lying near the heater. Electronic items can overheat. Many accidents happen due to this.

If someone has a gas heater in their home, it is even more risky. Carbon monoxide gas coming out from such heaters is very dangerous. This gas can cause headache, dizziness, suffocation, confusion, even unconsciousness. This gas can also be fatal in a closed room.

Heater reduces the humidity of the air, which causes dry eyes. Due to which problems like itching, redness, burning sensation, frequent watering of eyes start occurring. Hair also becomes dry and weak, dandruff increases, hair falls and scalp itches.