Based on research carried Ronald Barr, MD from the University of British Columbia, newborn to first five months generally experience a period of crying for hours.
It is said, in a day baby crying as much as five hours. This is according to Barr, called the experience a phase that is named "The Period of Purple crying". This reasonable phase occurs and not due to the fault of parents in the upbringing and care of the heart.
Barr also mentioned, the baby will often cry began two weeks of age until the age of 3-4 months. Although some other baby might not be too often cry. However, during this period, generally a baby will often cry. He was fussy and relative inconsolably back.
Along with the research carried Barr, another study mentions, it's often crying baby in the morning and the evening, especially when her parents go to work and when they're sleeping.
To defuse the turmoil parents, Barr made a "formulation" periods or phases of crying. Following a period of crying "PURPLE":
P: Peak crying
Since birth, the next every week, the baby will often cry. Top baby cried at the age generally 2-5 months.
The baby cried without being able to predict, unexpectedly, and without an obvious reason. That is, unable to know when to start and end, also will not be known why or for what reason to cry.
That is, the infant will reject peace. Even if You've tried to soothe, nonetheless she was crying because it is his time.
Baby crying impressed like I was feeling sick, but you do not find the cause. In fact he did not even feel sick.
The period can be very old baby cries, reached two hours.
Babies will cry more often in the afternoon or evening.