03/05/2026
A study about prolong crying and babies when left to cry for long periods of time can cause brain damage and emotional detachment from the child and parent as they get older.
I never could let my baby cry for a really long time. I always had to go pick them up, no matter what. 
Denmark is taking significant action by moving to phase out the “cry it out” sleep-training method after a nationwide study pointed to possible risks. More than 700 psychologists cautioned that allowing babies to cry for prolonged periods may affect brain development and weaken parent-child attachment. The report underscores the value of responsive caregiving in early life to support strong emotional and cognitive development.
Researchers analyzed the impact of extended crying and found connections to heightened stress levels and potential long-term effects on brain function. While the method is still recommended in some parts of the U.S., Denmark’s shift reflects increasing concern among professionals about whether the risks outweigh the benefits. Supporters of alternative sleep approaches advocate for gentler, gradual techniques that encourage better rest without jeopardizing developmental health.
The decision has gained widespread attention within parenting and healthcare circles worldwide. It signals a broader change in how early childhood care is understood and emphasizes the importance of policies grounded in psychological science. Parents and caregivers are being urged to consider safer, research-backed sleep methods that promote both healthy brain growth and secure emotional attachment.