Much more difficult for a woman because by the time a woman's got into her forties, her child rearing erm career is usually rather short and even if she wants to continue, it becomes much more hazardous for her and for her offspring, so er in, in the case of erm modern societies with erm monogamy bu but divorce as we have, you can't help thinking that to some extent the, the odds are, are loaded in the favour of men as it were in terms of their  reproductive success.