The Mystery of Childbirth Is Finally Being Unravelled

分娩之谜终将揭晓

New Scientist Podcasts

2026-09-16

23 分钟
PDF

单集简介 ...

Episode 399 Some aspects of childbirth have remained surprisingly mysterious - and scientists haven’t been able to agree on what actually kicks off the labour process. But they’ve finally worked out what’s going on - and the discovery could turn birth into a much more predictable occasion. The labour process in humans is much more complex than in other mammals. But researchers have now worked out the driving force that kicks it all off is the immune system - a special type of inflammatory macrophage sending mitochondria to the uterus just before birth. To explain this new discovery and why it might be game-changing for avoiding pre-term births, Rowan Hooper and Penny Sarchet are joined by Australia reporter Alice Klein. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices
更多

单集文稿 ...

  • When you need to build up your team to handle the growing chaos at work, use Indeed Sponsored Jobs.

  • It gives your job post the boost it needs to be seen and helps reach people with the right skills, certifications,

  • and more.

  • Spend less time searching and more time actually interviewing candidates who check all your boxes.

  • Listeners of this show will get a $75 sponsored job credit at Indeed.com slash podcast.

  • That's Indeed.com slash podcast.

  • Terms and conditions apply.

  • Need a hiring hero?

  • This is a job for Indeed Sponsored Jobs.

  • Today we're discussing one of my favourite examples of evolutionary biology and it's not an insect, it's a human baby.

  • It's a human baby.

  • And specifically the drama, the absolute drama that occurs at the birth of a baby.

  • That is the right way to put it.

  • I can confirm that the late stages of pregnancy and the whole business of labour is wild.

  • Well, I like the idea that there's a battle.

  • Between the fetus and the mother over nutrition, but also over when to come out, when to get out.

  • And it's almost shocking, isn't it, to describe that relationship between mother and baby as a battle.

  • But evolutionarily speaking, that's what it is.

  • Well, they call it the maternal-fetal conflict.

  • But a new discovery that we're going to get into shows that the mother transfers mitochondria.