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Aeon is a registered charity committed to the spread of knowledge and a cosmopolitan worldview. Our mission is to create a sanctuary online for serious thinking.

No ads, no paywall, no clickbait – just thought-provoking ideas from the world’s leading thinkers, free to all. But we can’t do it without you.

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Which human embryos make it?

4 minutes

New research helps predict which human embryos are most likely to succeed

When assisting conception with in vitro fertilisation, embryologists need to achieve a delicate balance: transfer too many healthy embryos, and a woman faces the potential danger of twins or triplets; transfer too few, and a woman risks having to repeat the process or not having a child at all. Human fertilisation, as it turns out, is an uncertain process both inside and outside of fertility clinics. This video from KQED San Francisco’s science documentary series Deep Look shows how researchers are getting closer to making in vitro fertilisation a more precise science.

Producer: Gabriela Quirós

ORIGINAL
Video/Cognition & Intelligence

For millennia, we’d never seen anything like film cuts. How do we process them so easily?

7 minutes

ORIGINAL
Video/Ethics

If soldiers act with unjust aggression they are as culpable as civilian criminals

6 minutes

Video/Mathematics

Going from A to B isn’t always a straight line – but it can be very good fun

2 minutes

Essay/Wellbeing

The healing power of nature

The idea that immersing yourself in forests and nature has a healing effect is far more than just folk wisdom

Rebecca Lawton

Video/Wellbeing

After Katie’s double mastectomy, Claire can help: with 3D nipple tattoos

9 minutes

Idea/Old Age & Death

How can life-extending treatments be available for all?

Christopher Wareham

Idea/Illness & Disease

Fatal nurture: what a rare disorder says about ‘bad mothers’

Chris Millard

Essay/Neuroscience

When is stress good for you?

The subtle flows and toxic hits of stress get under the skin, making and breaking the body and brain over a lifetime

Bruce McEwen

Video/Illness & Disease

Maria’s skin tears open every day but, though her body is fragile, her will is formidable

18 minutes