Babies left to cry stay unhappy hours after: Study
London: Parents please take note, babies who are left to cry themselves to fall asleep feel "stressed" and stay unhappy even after they seem to settle, researchers say.
Researchers at the University of North Texas found that youngsters who are deliberately left to cry themselves to sleep eventually appeared to settle themselves without being comforted.
But the levels of the stress hormone, cortisol, remain high in them even after they have apparently learnt to settle themselves. In other words, the child is still unhappy but just keeping quiet about it, the researchers said.
The study, published in Journal of Early Development, is likely reignite the debate about the popular parenting method called "controlled crying" which many believe trains babies to settle into a routine, the Daily Mail reported.
In the study, the researchers put a group of four to ten months old babies -- who had trouble getting into a routine or settling without being comforted -- to bed and left to soothe themselves to sleep. The mothers stayed in a room near enough to hear any cries but were not allowed to go to their babies.
Levels of cortisol were measured in the women and babies on the first night of the study and on the third day, by which the infants cried little before dropping off. However, their cortisol levels remained high, the researchers found.
In contrast, the amount of cortisol in the mothers had dropped, suggesting that they had relaxed due to the lack of crying from their baby.
"Although the infants exhibited no behavioural cue that they were experiencing distress at the transition to sleep, they continued to experience high levels of physiological distress, as reflected in their cortisol scores," said study author Wendy Middlemiss.
"Overall, outward displays of internal stress were extinguished by sleep training.
However, given the continued presence of distress, infants were not learning how to internally manage their experiences of stress and discomfort."
The brevity of the study means it`s not clear if cortisol produced by the babies does eventually drop. The researchers are now doing a longer study to see if the hormone level falls with time, as babies learn to cope with going to sleep alone.
More from India
More from World
More from Sports
More from Entertaiment
- I eat beef, can somebody stop me?: Kiren Rijiju hits back at Naqvi
- Delhi: Visually impaired boy scores 91.4% in CBSE 12th Board exams
- MP: 14-year-old boy works as bonded labour since 2009
- UP: Man chops off wife's nose, hair for dowry
- Zee Media Exclusive: The plight of yoga expert Tejaswi Sharma
- Woman denied flat in Mumbai for being a Muslim
- 4 Indians in Forbes' 100 most powerful women list
- BBV: What challenges lie ahead of Modi govt?
- Gujjar stir: HC asks Rajasthan govt to clear rail track, roads
- Heat wave continues in India, death toll climbs to over 1,400
- Megastar Amitabh Bachchan slapped with Rs 1 crore notice
- Gujjar stir: HC asks Rajasthan govt to clear rail track, roads- Part II
- Kenyan lawyer offers to marry Barack Obama's daughter Malia
- AIB: The 'Third Gender's right to dignity'
- Maggi likely to face ban in India!
- CBSE Class 10 Board Result 2015 to be announced today
- CBSE Class 10 Board Result 2015 (cbse.nic.in, cbseresults.nic.in) postponed?
- Check mahresult.nic.in for MSBSHSE Maharashtra Class 12 HSC Result 2015
- Maharashtra MSBSHSE HSC Result 2015 on mahresult.nic.in
- I was misquoted, says Kiren Rijiju on 'beef' remark
- First look: Salman Khan steals thunder in `Bajrangi Bhaijaan`
- mahresult.nic.in updated with MSBSHSE Maharashtra HSC Class XII Result 2015
- Check cbse.nic.in, cbseresults.nic.in for CBSE Class 10 Result 2015
- Manmohan Singh defends himself on 2G charge, slams Modi govt for 'carbon copy' schemes
- Sonia Gandhi 'unconstitutional authority' during UPA: PM Narendra Modi
- Hours after attacking NDA govt, Manmohan Singh meets PM Narendra Modi
- CBSE Class 10 (Class X Board) Result 2015 on cbse.nic.in, cbseresults.nic.in at 2 pm
- Reservation stir: Five percent job quota to Gujjars unlikely, hints Rajasthan govt
- PMO website revamped, now send e-mail to PM Modi directly
- Death toll climbs to over 1400 as intense heatwave continues in India