Lack of ventilation inside the houses can also lead to health issues resulting from air pollution. For example, the pesticides and other chemicals, brought into use extensively in the homes, are required to be properly exhausted from the house, but this cannot be achieved as a result of improper ventilation. The same is inhaled by the inhabitants and thus leads to health issues. Air pollution is present everywhere and it is very important to protect yourself from the ill effects of this pollution and to remain healthy. This course about the 5 pillars of optimal health will give you some great and highly useful information about living a healthy and happy life.