"The stupid warnings only damage the reputation of good health advice," says David Spiegelhalter.
The problem has been known about for two decades.
Now might be a good time to try Dry January.
In 2014, cancers related to being overweight or obese accounted for 40 percent of all diagnoses for the disease.
Among the stressors survivors were exposed to: starvation, overcrowding, infectious diseases, strenuous physical activity and physical and emotional abuse.
A new large-scale study suggests genetics play a role in more than 20 different types of cancer.
Over the past 50 years, oral contraceptives have prevented about 400,000 deaths related to this form of cancer.