Height (cm): 68.3 ~ 73.6 weight (kg): 7.8 ~ 9.8 head circumference (cm): 45.74 chest circumference (cm): 45.13 female baby: height (cm): 66.4 ~ 710.8 weight (female)

8-month-old baby's ability to develop body movements: most of the 8-month-old babies can crawl, and the faster they crawl, the better their hand-foot coordination. You can do more delicate movements, pinch tiny things, such as rice grains, and put them in your mouth, and you can turn from prone position to supine position or semi-sitting position.

Language ability: after 8 months, the baby's language ability has improved, and he has more and more conversations with others. He can imitate adults' speech. Although he can't speak many sentences, he can pronounce "yaya" and "ahh" and say "mom and dad", but this is unconscious pronunciation.

Sensory system: the baby can tell people's emotions from other people's expressions and tone. If he glared at the baby, he would cry with a flat mouth. If he shouted loudly, the baby would be sad. If an adult looked at the baby with a smile, the baby would respond happily with a smiling expression.

Consciousness: I will take the initiative to ask adults to hug me.

The reasons for the baby's slow height development 1, and the unreasonable addition of complementary food.

The baby has adapted to the taste of breast milk and formula milk, but failed to adapt to complementary food, so he doesn't like complementary food. Or it is that adults are not good for children's appetite when making complementary food, which leads to the baby refusing to eat complementary food.

2, lack of vitamin D.

Whether breast-feeding or formula feeding, vitamin D should be supplemented, because vitamin D promotes calcium absorption, and the baby can't grow without calcium. As long as the baby's milk quantity reaches the standard, there are two reasons for calcium deficiency. One is that the milk quantity is not up to standard, and the other is that vitamin D is not supplemented to the baby according to the regulations.

3. Insufficient sleep time.

The baby's sleep quality is not good, and it is easily disturbed by external factors. When sleeping, it is easy to be awakened, unable to enter deep sleep, and the secretion of growth hormone is less, resulting in the height being affected.

Ways to help children grow taller 1, vitamin D supplementation

For babies before one year old, if they are breast-fed, they only need to supplement 400 units of vitamin D, because the vitamin D content in breast milk is very small. If they are artificially fed, parents will decide how much to supplement their babies according to the vitamin D content in the formula table behind the milk powder can, or consult a doctor.

2. Add complementary food reasonably.

After 6 months, the baby will start to add complementary food, because the baby is in a rapid stage of growth and development, breast milk and formula milk can not meet the baby's growth needs, and only drinking milk is easy to get hungry, so it is necessary to add complementary food reasonably, which can satisfy both satiety and nutritional needs.

3. Outdoor activities

When the weather is fine, adults should go out with their babies to bask in the sun in spring, and the sunbathing time should not be too long.15 ~ 30 minutes is appropriate, and the time should be controlled.

4. The milk quantity reaches the standard.

The milk quantity is not up to standard, even if you eat vitamin D as required, it is of little use, so it is necessary to meet the milk quantity.