The part about watching live videos sounds sketchy, but I have heard it said that a new mother who is still lactating can/will eject milk from her breasts if she hears the sound of the human baby's cry. No clue if this is pseudoscience or what, but what I will say is, I think this would only work for a woman who is
already lactating. In other words, I think the baby crying elicits the
let down of milk (via oxytocin), not the
production of milk (via prolactin). As far as I know, the only way to induce lactation artificially in a woman who has never produced breastmilk before is via hormone supplementation. But I've always been fascinated in / wanted to learn more about other possible means by which to elicit milk synthesis and milk let down in women.
When you think about evidence for the induction of lactation in a non-lactating woman, it's true that one thing which comes to mind is the fact that we have tons of stories from antiquity of orphaned babies being adopted by families and raised into fine young men or women. For that to happen, it means that the adoptive mother either had to have already been lactating (e.g. she had another baby of her own, or maybe she was a whetnurse) or else lactation was induced secondary to the boy's/girl's adoption. What I'd be interested to know is what
empirical evidence exists for the induction of lactation in adoptive mother
who have never lactated before and who do not use any hormonal supplements or other 20th-century medications to get them started.
Also, the article's
almost misleading about the name "colostrum" but it saves itself in the second part of the three-part lactation cycle. Colostrum is most famously the name for the milk a mother gives to her baby during the first few weeks after pregnancy. It's the milk you hear about all the time in the news, the milk which has immunoglobulins to help protect the baby from pathogens. By convention, pre-partum breastmilk would also be called "colostrum" -- the etymology of the word means "first milk"
(source) -- but if you asked somebody on the street "What's colostrum?", if he knows he's probably going to answer that it's the milk you see during the first few weeks post-partum.
If you are a woman or you know one who is interested in promoting her own lactation and improving her health at the same time, check out
fenugreek.