Quite a few articles doing the rounds this week.
The XX chromosome combo seems more robust - if there's something wrong with one X, a woman's other X will compensate (eg I probably carry my father's colour blindness but my mother's healthy X patched that). But male embryos/men, with only the one X, may be more vulnerable.
Female embryos are more engaged with building the immune system very early on than male.
Men are more likely to do risky behaviour like motorbikes, driving dangerous, drinking, fighting - testosterone is a dangerous drug?
Men are more likely to be doing dangerous professions - building sites, deep sea diving, the military etc, and to die at work.
Men are more likely to murder and be murdered.
Men are less likely to consult a doctor for health issues - I once came home to find my partner googling 'What should I do about this pain in my chest' (yes, heart attack) whereas I'm on the phone if it doesn't look right, feel right, act right and to take every routine test on offer - because I've been socialised to know my entire female anatomy is trying to kill me.
Men are less likely to talk about and ask for help with mental and emotional issues which can descend into depression, and higher male suicides.
Even though women still die in childbirth, suffer PND, are way more likely to be murdered by their intimate partners and are prescribed drugs that were habitually not developed using female test cohorts.
www.sciencenewstoday.org/why-do-women-live-longer-than-men-scientists-say-the-answer-lies-in-evolution