[Pining_4_TX]

None of that was true about young people in the late 1800s, though. If colorectal cancer rates were high then, it can’t be attributed to the evils of 21st century lifestyles.

[Roman_War_Criminal]

Wasn’t the whole point that colorectal cancer rates were almost non-existent in the late 1800’s?

[Wissa]

None of that was true about young people in the late 1800s, though. If colorectal cancer rates were high then, it can’t be attributed to the evils of 21st century lifestyles.

The higher incidence in the two different periods may be from different causes. In the 1800s it may have been from carcinogens in what people ate or in drinking water. Nowadays it may be from something like eating too much McDonalds food over a period of decades.