Q: When are babies at their cutest? A: When they are asleep! First, because the baby is asleep when the mothers finally free themselves; Second, because looking at such a small person, good super cute, and often can see the baby in the “sneer”, as if doing what a beautiful dream. There are also times when you see the baby frowning, a mom jokingly called her baby: “This is a dream daughter-in-law was robbed? Frowning a frown.” There are many versions of the folk interpretation of this phenomenon For the baby snickering, some mothers believe that this is the baby sleep comfortably; some mothers say that it is the baby every time to drink a full milk, sleep will only reveal a smile of satisfaction. There are many versions of this phenomenon in folklore, including the “Sleeping Granny’s sleep”, which is rumored to be a dreamy granny teaching the baby to learn her skills; the Duke of Zhou telling the baby a story; and the version that the baby is snickering because he won a fight with a mouse, etc. In any case, there are many versions of this phenomenon. Whichever version is more or less with some mystery, we do not judge. Is it true that babies snicker and frown when they sleep because they dream? There is no research to determine whether babies can dream, but considering that babies are just born not long ago, cognitive ability, thinking ability has not yet developed, and even they do not know who they are, according to the baby’s limited experience, basically there is not much content can dream. From a physiological point of view to reveal why babies snicker when they sleep? Smiling is mostly physiological within 3 months after birth, when the baby’s nervous system are not well developed. The baby’s sleep cycle is composed of two phases, namely, non-Rapid Eye Movement sleep (also known as quiet sleep in infancy) and Rapid Eye Movement sleep (also known as active sleep in infancy). 4 to 6 months old babies are fragmented sleep, a sleep cycle will wake up after a breastfeeding, play; older babies sleep cycle at night will gradually and naturally merge, the two alternating in the whole sleep process. During the active sleep period, the baby’s performance is particularly interesting Facial expression is rich. For example, the mother saw the baby snickering ah; sleep as if there is something on his mind frowning little eyebrows ah; feel the baby dreaming to eat the sucking action, and may even make a sound, are all in this stage of the emergence. Frequent physical activity. For example, mothers sometimes see their babies twisting around while sleeping (usually slow twisting); occasionally they may see their babies suddenly and instantly twitching. Sleep is of great significance to the healthy growth of babies: it promotes the development of brain function and development; it promotes brain energy storage; it promotes growth and development; it enhances immune function; it promotes cognitive development; and it promotes recovery of physical strength. If the baby’s needs are met before bedtime, and the baby will only laugh when he falls asleep, it means that the baby is very comfortable and safe in this state, although this kind of laugh has no social meaning. When the mother sees the baby moving around, she must not be the first to pick up the baby. Observe around the baby to see, usually the baby will be quiet on their own. If the baby cries and fusses, most of the time it is because the needs are not satisfied, and the mother should give timely and accurate satisfaction.