Most babies can lift their heads around 1-2 months old, their shoulders around 2 months old, and their chests around 3 months old. Some babies will occasionally lift their heads around 1 month of age, but not very often. 2-3 months of age, the baby’s cervical spine gradually develops, its head lifting action will gradually increase, at this time parents need to hold the baby’s neck when holding the baby upright. As the baby develops, the strength of the neck muscles will be strengthened, and by about 3 months of age, the baby will be able to hold his head steadily without the need for adult assistance. After the baby can raise his head, the physiological curvature of the neck “neck curve” will naturally form, at this time the baby can also look around, the field of vision will also be more open. In the process of child growth and development, parents should follow the natural rules, do not try to help the growth, otherwise it will also lead to adverse consequences. Parents should pay attention to understand the basic laws of child growth and development, in order to better help children grow up healthy.