Data Shows 2 Biggest Factors for Cancer Risk NewsmaxBiological sex differences may be the reason behind higher cancer risk among men than women News-Medical.NetBiological Sex Differences: Why Men Face a Higher Risk of Most Types of Cancer Than Women SciTechDailyMen have greater cancer risk because of biology NOT because they drink and smoke more, study claims Daily MailCancer: Men more likely to develop multiple tumours than women - which ones?