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The shorter average lifespan of males compared to females appears not to be a result of the fact that males have only one X chromosome. This is the conclusion from a research study on fruit flies at Linköping University.

Males and females have different strategies to maximise the number of offspring during life. The differences in reproductive strategy contribute to differences in aging between the sexes, according to a new study of fruit flies carried out at LiU.

The number of mutations that can contribute to ageing may be significantly higher than previously believed, according to new research on fruit flies. The study supports a new theory about the type of mutation that can lie behind ageing.