The average life expectancy was roughly 50 years in 1900, depending on which area of the world one was located in. Today, that figure is above 80 in virtually all developed countries – it’s slightly lower at 79 and change here in the United States. People live longer today because of hard work practitioners and researchers in the healthcare field have contributed to society; a short list of primary improvements to human health that effectively lengthened the average life expectancy includes the elimination of smallpox, waving “goodbye” to polio, pumping out countless readily-available vaccines for practically every infectious disease, and widely spreading knowledge of preventative measures to help prevent health problems.
One thing humanity hasn’t been able to rule out, unfortunately, is cancer. In 1900, only 64 out of every 100,000 people died from cancer – they usually died of something else first that few people die of today. Some 196 of every 100,000 people pass away due to the disease.
Lung cancer is the most deadly variety of the sudden-striking disease and the second-most common. Oddly enough, despite the wealth of information available today regarding preventative measures to take against lung cancer, it remains a major killer.
Lung cancer is most frequently caused by this common habit
According to the United States Centers for Disease Control and Prevention – the CDC is the go-to agency in the US for health concerns estimates that roughly 38 million adults across the 50 states smoke cigarettes. Many smokers develop lung cancer, making the nasty habit the number-one cause of preventable death and disease across America. Known in part due to ongoing campaigns seeking to reduce cigarette consumption in the United States, roughly nine out of 10 instances of lung cancer are caused by smoking tobacco.
Here’s how smoking harms the lungs, often irreparably
All smoke damages lung tissue, though tobacco harms the lungs cell especially. Like most organs, the lungs attempt to repair themselves of the smoking-related damage; however, the continued inhalation of tobacco smoke increasingly makes repairing them difficult for the body. Chronically-damaged lung cells can mutate and cause cancer due to such repeated abuse.
Other causes of lung cancer, at least all those outside of genetics and bad luck, are all related to breathing harmful substances.