A professor from American University in Cairo says discovery of prostate cancer in a 2,200-year-old mummy indicates the disease was caused by genetics, not environment.
The genetics-environment question is key to understanding cancer.
AUC professor Salima Ikram, a member of the team that studied the mummy for two years, said this was the second oldest known case of prostate cancer.
"Living conditions in ancient times were very different; there were no pollutants or modified foods, which leads us to believe that the disease is not necessarily only linked to industrial factors," she said.
Associated Press