In this competing risk scenario, we determined that the shorter life expectancy of women who avoided sun exposure was mainly due to a dose-dependent significantly increased risk of CVD and noncancer/non-CVD deaths, as compared to the moderate and high sun exposure groups. We conclusively showed that as the risk of dying in the CVD and noncancer/non-CVD groups decreased with increasing sun exposure, the relative contribution of death due to cancer increased, probably as a result of extended life expectancy. Our finding that avoidance of sun exposure was a risk factor for all-cause death of the same magnitude as smoking is novel, but in agreement with systematic reviews of vitamin D and the risk of CVD 2. The absolute difference in life expectancy, however, differed by age and smoking habits. For example, we estimated that smokers at approximately 60 years of age with the most active sun exposure habits had a 2-year longer life expectancy during the study period as compared to smokers who avoid sun exposure.

https://onlinelibrary.wiley.com/doi/full/10.1111/joim.12496

In 1916, Dr. Arthur Waite tried to murder his in-laws with the “deadliest” disease germs so that no one would suspect the crime.

They didn’t get sick. He had to finish them off with arsenic—which got him caught. Had germ “theory” worked, he would have gotten away with murder. For more examples of …