Will the harm of lack of sleep in babies affect their physical development?

Question 1: My baby is 34 days old. Recently, he has been staying up all day during the day, always feeding, and only starts to sleep at 7 o\’clock in the evening. He can sleep about 13 or 14 hours a day. Is this normal? How much less sleep time? How can I get her to sleep during the day? Dr. Xu Lijuan’s answer: Apply Ding Guier umbilical patch to the child, and massage the child’s abdomen in a clockwise direction to promote the discharge of intestinal gas. The child may have an uncomfortable stomach. In addition, make sure the child is breastfeeding to see if there is not enough milk. Each child\’s sleep time is different, so there is no need to deliberately require it. If the child is in good spirits and is feeding normally, it will not be a big problem. Question 2: My daughter is four years old. She cannot speak clearly. Some words cannot come out. Sometimes she stutters on the first word of her words, but some words she says are very clear. What is going on? Dr. Bi Shaoli’s answer: Go to the dental department of the hospital to see if the child has a short tongue. If the short tongue affects pronunciation, it can be shortened according to the interview. Check first to determine the cause and treat based on the results. Question: A baby over one year old has oral ulcers on his mouth. This is the second time. Is there something missing in his body? What do you need to eat? Dr. Cui Lixia answered: Zinc deficiency and vitamin B deficiency are prone to oral ulcers. It is recommended to have a thorough check-up, including checking whether there is anemia. Now, spray open the throat sword to check for oral ulcers.