disappointedone, I don't know if you're trolling me or simply feel strongly about this subject, but I have read the piece you linked to and want to respond as it's important. This...
(Seriously, why have a baby if you don't want it to behave like a baby? They wake at night for reasons other than to
piss off their parents!)
...I'm not going to dignify with a response.
For those who are interested in parsing the evidence that sleep training is harmful, read on. Otherwise skip it - this will be long and nerdy.
So, disappointedone: Your link is to another blog post from someone who co-writes with the first author. The quote you selected is also from that blogpost, and is the author's personal take. The 'plenty of scientific links' they provide actually break down as follows:
- A link back to the rather questionable Darcia Narvaez blogpost you first signposted
- A summary of an academic journal article - more on this in a moment
- Broken link, possibly a further ref. to the same article
- A link to the author's website inviting you to pay for her wisdom on the subject of baby 'science'
- Wikipedia
- Psychology today, and Darcia Narvaez again
So let's talk about the one piece of reputable research in the bunch, the article in the journal of Early Human Development. The researchers looked at the cortisol (stress hormone) levels of babies undergoing sleep training in New Zealand. They used a method somewhere between CIO and CC, with nurses, not mums, doing the night shift. Mums were in the next room and could hear the babies but not go to them. So a pretty hardcore version of sleep training. The babies were also fairly young - 6.5 months on average, some as young as 4 months.
Cortisol swabs on day 1 showed that both babies and mums were stressed (duh). Swabs on day 3 showed that the babies, who had all stopped crying, were nonetheless still stressed. The mums' stress levels had dropped when the crying stopped.
That's as far as the research piece goes - they weren't looking at the impact of sleep training on infant wellbeing, so don't investigate the question any further. So it does beg the question of whether sleep training just teaches babies to keep stress to themselves, and could be harmful in ways we don't realise.
BUT - that's all it does, beg the question. And frankly, if I go ahead with sleep training, I'd expect my baby to still be stressing on day 3. It doesn't mean she is destined to be scarred for life, any more than a 1 year old whose cortisol shoots up when starting nursery is permanently scarred. And the authors of the article themselves note the possibility that the babies' cortisol levels might well go on to drop with more time.
I could go on, but the scientific evidence on this stuff is quite thin. What research does exist on cortisol and brain development is largely derived from extreme cases of neglect, abuse and attachment disorders, and therefore its relevance to the short-term sleep training of otherwise loved, healthy, happy babies is questionable.
Please think twice before you dump links like that on sleep deprived parents trying to do the right thing by their much loved children. Just because it suits certain 'experts' to overinterpret the evidence to sell their wares, doesn't mean it's right. And just because a webpage has science in the URL doesn't mean that's what it is.