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  • Yu Hun Hwang

Environmental Factors Influencing Health

Updated: Apr 5

Hi, welcome to my blog.

Today I am going to talk about Environmental factors which influences our health.



1. Humidity


Humidity is one of the most important factors. High humidity causes stickiness, dampness, and coldness. The worst of all is the mould growth. Those black patches of mould can grow around the corners of your house. On the other hand, low humidity, simply dryness, can cause coughs and dry skin. Having the right humidity is important for our respiratory and skin health. We cannot control humidity level outside, but it is controllable in the house. According to the Healthline comfortable humidity level is 30~ 60%. Anything over 60% is too much. If your family member is suffering from respiratory conditions, make sure to check your home is not too dry or humid.



2. Temperature


Temperature is another factor that influences our health, but very controllable by wearing more or less layers of clothes, and increase the temperature in the house. Cold temperature closes the pores of the skin and decreases the circulation to the skin to reserve the heath, especially during the winter time. Hot temperature opens the pores of the skin and increase the circulation to the skin, causing easier perspiration (sweating) and heat dissipation. Changes in the temperature changes how our body functions. As the circulatory system changes, our blood volume moves to different locations as well. If temperature is high, circulation and blood goes towards skin, which may lack of blood supplies in digestive system. If you do not have much appetite during the summer, that is probably why. During the winter, circulation and blood goes inward to organ system. This will cause tightness of skin and dryness of skin due to lesser supplies of blood going toward the skin. This is all due to the changes of temperature. Keeping good temperature in the house, usually recommended being around at 21C or 70F, will help the body to be adaptive to the environment. Having higher temperature or lower temperature may bring different health outcome.



3. Ventilation


Ventilation is keeps the house refreshed. If the house stinks for a while after cooking is done, then the house might not be equipped with a good ventilation system. One way to control humidity and temperature is the ventilation system. A good ventilation system will allow exchanges of humidity and temperature between different rooms and keep them uniform. There are now Heat Recovery Ventilators and Moisture Recovery Ventilators, which may help you to maintain the temperature in the house. Making sure your house is equipped with a good ventilator system will allow you to save money on purchasing humidifiers, dehumidifiers, or expensive equipments. Some houses may have radon gases, which may benefit from the good ventilation system. More details about radon can be found here.


We cannot control the nature, but we can control our house which we live in to benefit our health. Be in charge of your health by having a healthy house. Good health will help you to gain wealth.


These are informational purpose and should not be treated as legal, medical, or professional advices. Please ask your medical doctors or local experts about their advices.



#health #environmentalfactors #house #wealth



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