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How to increase height: Factors that influence growth

How to increase height: The main factor that influences a person’s size is their genetic makeup. However, many other factors can influence size during development, including nutrition, hormones, activity levels, and medical conditions.

Scientists believe that genetic makeup, or DNA, is responsible for about 80% the size of a person. This means, for example, that tall people tend to have children who also grow up to be tall.

People generally grow up to the age of 18. Before that, a series of environmental factors can affect their size.

This article covers the factors that affect a person’s height, some ways in which people can increase their size during development, and whether or not adults can increase their size.

How to increase height
How to increase height

Babies and children are growing continuously. This is due to changes in the growth plates in the long bones of their arms and legs.

As the growth plates make new bone, the long bones grow longer and the child grows.

People grow fastest in the first 9 months of their life, before being born. After birth, it slows down.

Once a child is 8 years old, they will grow an average of 2.16 inches (in.), Or 5.5 centimeters (cm), per year.

That said, teens will have a “growth spurt” by the time of puberty. After that, the growth plates stop making new bones and the person stops growing. The hands and feet stop growing first, then the arms and legs. The last area to stop growing is the spine.

Due to typical aging processes, people start to lose height gradually as they get older.

The following factors can affect a person’s height:


DNA is the main factor determining the size of a person.

Scientists have identified more than 700 different genes that determine the height. Some of these genes affect growth plates and others affect the production of growth hormones.

Normal height ranges are different for people of different ethnic origins. Again, this is determined by their DNA.

Certain genetic conditions can also affect a person’s adult size, including Down syndrome and Marfan syndrome.


The body produces hormones that ask growth plates to make new bones. These include:

  • Growth hormones: They are made in the pituitary gland and are the most important hormone for growth. Certain health conditions can limit the amount of growth hormones produced by the body, which can have an impact on size. Children with a rare genetic disorder called congenital growth hormone deficiency, for example, will grow at a much slower rate than other children.
  • Thyroid hormones: The thyroid gland makes hormones that influence growth.
  • Sex hormones: Testosterone and estrogen are very important for growth during puberty.


Males tend to be larger than females. Males can also continue to grow longer than females. On average, an adult man measures 5.5 inches (14 cm) larger than an adult female.

According to Centers for Disease Control and Prevention (CDC)In the United States, the average male is 175 inches (175.2 cm) and the average female is 161.5 cm (63.6 inches).

Find out how old girls stop growing and what age boys stop growing here.



People cannot control most of the factors that influence their size. Indeed, they are determined by DNA, which they cannot modify.

However, certain factors can increase or decrease growth during childhood and puberty. Growing children and teens can take steps to maximize their adult size. These include:

Ensure good nutrition

Nutrition plays a very important role in growth. Children without good nutrition may not be as tall as children with adequate nutrition.

Nutritionists recommend that children and young people eat a varied and balanced diet with lots of fruits and vegetables. This will ensure that they get all of the vitamins and minerals they need to thrive.

Protein and calcium are particularly important for bone health and growth. Some protein-rich foods include:

  • Meat
  • Poultry
  • Seafood
  • eggs
  • legumes
  • nuts and seeds

Some calcium-rich foods include:

Ensuring good nutrition during pregnancy is also important for bone health and fetal growth.

the World Health Organization (WHO) recommends that pregnant women eat a variety of foods, including “green and orange vegetables, meat, fish, beans, nuts, pasteurized dairy products, and fruit.”

Get enough sleep

Sleep promotes growth and development in children and adolescents. During deep sleep, the body releases the hormones it needs to develop. Getting enough sleep can, therefore, lead to optimal growth.

Exercise regularly

Regular exercise is also important for normal physical development. Playing outdoors or playing sports, for example, can make bones healthier, denser, and stronger.

Once a person has gone through puberty, the growth plates stop producing new bones. They merge and the person stops growing. This means that when a person turns 18, he is unable to increase his height.

Practicing good posture and keeping your back and core muscles strong can help a person stand erect and appear taller.

Learn more about the growth factors that affect height in adulthood here.

Height is largely determined by DNA. However, environmental factors such as nutrition and exercise can affect growth during development.

As we age, children need good nutrition and lots of exercises to help their bodies produce the hormones they need to thrive. Adolescents will experience a growth spurt during puberty. After that, their bones will stop growing and they will not get bigger.

Good nutrition during pregnancy is also important for future bone health and baby growth.

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