There are many things that could be stated in conjunction with infant development. So, I will list some important milestones.
First, three months:
- They can smile.
- They can track objects with their eyes.
- They can grip objects in her hands.
- Take can swipe at things with their hands and arms.
Months four to six:
- They can roll over from front to back or back to front.
- They can babble and it can even seem like a real language, which can be amusing.
- They have greater control with their hands and arms.
- They finally have head control and can sit up with help.
Seven to nine:
- They can start to crawl and have other motions. However, some children move right into walking later without the crawl stage.
- They can sit without support.
- They can respond to familiar words like his name and even say basic words.
Ten to twelve months:
- They master the “pincer grasp." This means that they can hold things between their thumb and forefinger.
- They can say a few words; each child will differ.
- They can point at objects they want.
- They may take their first steps.
As for factors that influence growth, there are two major points to consider. First, the genes that a child inherits will determine growth. In other words, if the parents are tall, most likely the child will be tall as well. Second, there are environmental factors such as enough sleep, the right foods, and the proper mental and physical stimulation.