30. Exposure to harmful chemicals
If you live in a city or commute to one for work, you’re probably breathing in a lot of pollution. A 2013 study by the Massachusetts Institute of Technology (MIT) found that airborne pollution in China might have reduced the lives of 500 million people by 2.5 billion years. The study found that participants who had had lifelong exposure to 100 micrograms of ‘total suspended particulates’ (tiny particles in the air, e.g. pollutants) per meter of air cubed will reduce a person’s lifespan by 3 years.
Although our respiratory system is designed to deal with these tiny particles, some pollutants can get through the body’s defense systems and cause inflammation in the lungs. This could cause breathing problems, make existing conditions worse, and even lead to death. Other substances to avoid include processed foods. Science shows that these foods are drenched in chemicals that are often harmful to our health.