As far as recreational drugs that could have health benefits go, ecstasy doesn't exactly have a lot of champions. Instead, the drug, so often associated with raves, has been fingered as responsible for fatal overdoses, depression and problems in fetal development.
Alaska Natives are twice as likely to get colon cancer and die from it as the white population in the United States. When Mayo Clinic doctor David Ahlquist took a trip to Bethel, Alaska, in the mid-1990s, that startling statistic caught his attention.
"Here they had one of the world's highest rates of colon cancer and one of the world's poorest outcomes in terms of survival from cancer, because of late diagnosis," Ahlquist says.