Why do babies cry?
Hungry, tired, uncomfortable? Find out what your baby is trying to tell you when they cry – and what you can do to help.
Incredibly babies can’t produce tears at birth. Their tear ducts only produce enough water to moisturise their eyes during their first weeks of life; real tears can take up to three months to appear, sometimes even longer1.
It’s thought that tears have evolved to evoke sympathy, strengthening bonding, thereby securing survival2. They certainly provoke a strong reaction, but perhaps not as intense a reaction as the sound of crying.
A baby’s cry has a unique effect on our hearing that we find hard to ignore, even if the baby is not ours. Our ears are most sensitive to the frequency a baby cries at (3,000 hertz) and it promotes an immediate ‘fight or flight’ type response, even raising our blood pressure3. It seems that the sound is designed to make sure we tend to our baby’s needs as quickly as possible, but it can also mean that looking after a crying baby can be very stressful.
Knowing that some crying is normal is comforting, but looking after a constantly crying baby can be emotionally demanding and physically exhausting. If your baby is unsettled, take turns with your partner to try these soothing techniques3:
Don’t forget to look after yourself as well as your baby, and talk to your health visitor or GP if you’re concerned about your baby’s crying.
• Find out why babies cry.
• Talk to your health visitor if you’re worried about your baby’s crying. It could be caused by colic or some other discomfort.
•If your baby is less than 12 months old our Baby Symptom Checker is a useful way to capture their symptoms for a discussion with your health care professional. It also offers some practical tips.
• Ask for help from friends and family. If you’re stressed, your baby will pick up on it and often cry more. Make sure you take some time for yourself to relax and rebalance.
1. Today I Found Out. Newborn babies will cry without tears until they are several weeks old [Online]. 2011. Available at: http://www.todayifoundout.com/index.php/2011/05/newborn-babies-will-cry-without-tears-until-they-are-several-weeks-old/ [Accessed: December 2016].
2. Riem M et al. As tears go by: Baby tears trigger more brain activity than adult tears in nulliparous women [Online]. 2016. Available at: http://www.tandfonline.com/doi/abs/10.1080/17470919.2016.1247012?journalCode=psns20 [Accessed: December 2016].
3. Harris L et al. Don’t let baby tears tear you apart [Online]. 2013. Available at: http://www.oneplusone.org.uk/wp-content/uploads/2013/07/Dont-Let-Baby-Tears-Tear-You-Apart-OnePlusOne.pdf [Accessed: December 2016].
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