They also suffer more often than most people from a number of nasty genetic diseases , such as breast cancer . These facts , however , have previously been thought unrelated . The former has been put down to social effects , such as a strong tradition of valuing education . The latter was seen as a consequence of genetic isolation . Dr .Cochran suggests that the intelligence and diseases are intimately linked . His argument is that the unusual history of these people has subjected them to unique evolutionary pressures that have resulted in this paradoxical state of affairs.
遭受一些令人难受的遗传性疾病：suffer from a number of nasty genetic diseases
归因于社会影响：have been put down to social effects
高度重视教育的传统：a strong tradition of valuing education
密切相关：be intimately linked
使某人承受压力：have subjected someone to pressures
They also suffer more often than most people a number of nasty genetic diseases , such as breast cancer.