External sources that cause cancer Unlisted Video

According to Business Insider, "All cancer is a result of damage or genetic mutations in our DNA. But the various reasons individual cancer cases pop up in people are complex: some are genetic and passed down from one generation to the next, while others are a result of things in our environment that we inhale, eat, or use." Some of the substances that are strongly linked to cancer are sugar, processed food, tanning, and unprotected sun exposure.