A baby is a child from the age of newborn to 11 months refers to a newborn until one year or 12 months. Babies cannot do for themselves and depend on someone else for care and protection. They can’t even roll over in bed without assistance because babies between 0-3 months are not developed enough to do so. Their brains have not developed to the point where they can control their bodies. At approximately 7-8 months, babies learn how to roll over on their own. Babies also can’t sit up without help until about 8-10 months because the spine and neck muscles aren’t strong enough at this time for them to hold up their heads by themselves. Babies are born with the ability to smile, laugh, grasp onto objects, and see their parent’s faces. They cannot however do any of these things without assistance because they aren’t developed enough yet. Development happens at different times for every baby because it is all based on them growing into that stage of development. The average weight of a newborn is 7-8 pounds.
- A 5-month-old infant’s weight is approximately 11 pounds.
- An 8-month-old infant typically weighs 18 to 22 pounds and is 27 to 31 inches long.
- A 9-month-old infant’s weight is approximately 20 pounds.
- A 12 – 15-month-old child can weigh anywhere between 25 and 36 pounds.
- A 15-month-old child’s height is around 24 inches.
- A 16-month-old child will be about 2 feet tall and weigh between 30 and 38 pounds.
- An 18-month-old baby can range from 26 to 40 pounds in weight, with a height of about 33 inches on average.
- A 24 month old weighs approximately 36 pounds (16 kg) and measures roughly 3′ (91 cm). An adult male weighs an average of 160 lb at this age. The growth rate slows progressively after the first few months, but continues for over three years, slowly tapering off during adolescence.
Factors that influence how much babies sleep include the time since their last feeding or nap, what kind of sleeper they are, and whether or not it is nap time or bedtime.
- At six months, babies need about 14 to 15 hours of sleep in a 24-hour period.
- At nine months, the amount of sleep decreases to about 13 to 14 hours over a 24-hour period.
- An 18-month-old child typically weighs 24 pounds and is 31 to 34 inches long.
- A 24-month-old averages 30 pounds and is 33-35 inches long.
- A 36-month-old typically weighs 34 pounds and is 35 to 38 inches tall.
– Babies are able to recognize sounds, smells, and even touch during the first week after birth.
– Newborn babies can see but not well; their eyesight improves rapidly during the first six months.
– Between week 1 and 4, babies pay more attention to faces and voices.
– Newborn babies can’t yet tell the difference between a real face and a picture of a face, but if you talk to them in an animated tone, they will pay attention.