Unless you live alone, and never leave your home, you can not escape this problem. If you have allergies, hay fever, asthma, or other respiratory problems, you are seldom able to take a comfortable breath. Technology - Newer tighter buildings combined with new government efficiency standards has resulted in installation of HVAC systems that rely on exact balances of air flow, sensible and latent heat to perform at top efficiency. It may be ink solvents, an autoclave, or a multitude of gasses released by construction materials and new furniture. Once released into one of today's new tight buildings, these VOC gasses are trapped inside to be consumed by the people who work, study, pray or cheer.
Every human has a unique capacity to consume and process impurities.
These gasses, viruses, mold spores and bacteria are joined by hundreds of other toxins in the foods we eat, the things we touch, and the people we come in contact with to bombard the body everyday. Once your body's level of toxins exceeds your natural ability to fight, you begin to react - runny nose, irritated eyes, headaches, nausea, dizziness. The symptoms are endless. At the same time, the body has a built in protection device that reduces air intake if it senses impurity. This reduces the available oxygen to the brain which causes lethargy, short attention spans, headaches, and more.