Human growth and development in various ages.Infancy.1. The body.In the first born babies would be overweight. But when adapt better weight is increasing rapidly in the first months after birth to 6 6 months of increasing rate of weight is reduced. The height is increased. The movement of the baby in the first birth. The baby will not be able to control the movement of the muscles. The movement is in the reaction, such as suction, a toe foot when being rubbed gently. The frightened when I hear a loud voice. Etc. fleet will disappear when the baby was about 6 months. Because muscle parts. Start to develop healthy. By the development of muscle will start from the head, torso, limbs and fingers respectively. The proportion and ขนาดร่างกาย various parts of the baby in the newborn. It is characterized large heads than body, at the age of 1 years, head and body are of the same size until the age 5 years, body is bigger than the head. The work of organs. Will start to evolve after childbirth, such as the work of sweat glands, to help adjust the temperature of the body, the senses. Namely, to taste, smell, hearing and seeing will be developed to help children to distinguish things better respectively. The digestive system development better. The baby begins to eat with thick and hard up can eat like an adult.2. Emotional development.In the new-born baby symptoms are excited. No bright and cheerful alternately, which separate hard. Later emotions gradually. Developed by the maturity and learning condition of expressed emotion of young infants. To see that the baby this age of anger, fear, jealousy, curious, joy and love like a cry when upset. Moving away or singing when he saw a stranger. The attention when interested adults younger than the others or self disturbance things laughter embrace parents or familiar ones, etc.3. Social development.After the baby is born.
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