There are certain things in our environment that can increase our chance of illness.
Sun exposure is important for Vitamin D generation in our bodies, but too much can be dangerous. Too much sun, specifically UV radiation (which includes tanning beds), can increase your risk of skin cancer. Make sure to wear sunscreen, sun glasses, or cover up with clothes – https://www.cdc.gov/skin-cancer/prevention/index.html.
One of the most harmful exposures is tobacco smoke. If you smoke, you should try to quit. If you work or live with people who smoke, try talking to them about smoking. Tobacco smoke can also compound other risks to your lung health like air pollution and radon gas.
Consider ingredients in your personal care products and cleaning products. While the beauty industry has quickly adopted terminology like “natural” and “clean,” those terms are not regulated by the FDA. There are several consumer advocacy groups like The Environmental Working Group or MADE SAFE that provide databases of ingredients inside these products, and you can also check the European Union’s lists here (the EU tends to be more strict than the US). Read more here https://newsinhealth.nih.gov/2016/12/making-healthier-home
Plastics may also pose a risk to human health. There is a lot of research currently ongoing about things like phthalates and BPA, substances used in pesticides that may end up in our foods and others. Some suggestions for what you can do to reduce your plastic exposure include not using plastic containers in microwaves and dishwashers, washing fruits and vegetables before eating them, and trying to buy items that don’t contain these chemicals. Read more here https://www.niehs.nih.gov/research/supported/exposure/endocrine.
Some more ideas for lowering your risks are also found here https://www.nih.gov/health-information/environmental-wellness-toolkit.
