The growth of height is controlled by a combination of factors, including genetics and the environment. People can increase their height by eating a balanced diet, getting enough sleep and exercise, and having good posture. However, genes largely determine how tall a person will be. Some gene variants have dramatic effects on height (for example, the FGFR3 gene variant that causes achondroplasia) while others have more modest effects. Some researchers believe that more than 700 gene variants are linked to human height. 키성형
The rate of height growth varies across the population, but heritability of height is about 80 percent. This means that most people who are the same height share the same genetic code, and their parents’ heights will be similar to theirs. In some families, heritability is much lower. This may be due to nutrient availability or environmental conditions that influence the production of growth hormones.
Height increases most during adolescence, when the ends of growing bones fuse together. This usually occurs by the beginning of adolescence in girls and is completed by the end of adolescence in boys. The amount of height a person gains during this time typically accounts for 20-30% of their adult height.
During childhood, children grow by about 2.5 inches per year, but this rate slows down after age 2. Then, as they enter the prepuberty stage in puberty, their height growth accelerates, reaching a peak around the onset of adolescence.
In most countries, average heights have been increasing over the past century. Researchers believe that this is due to improved nutrition. People who are malnourished tend to have less than predicted heights.
A person’s body makes growth hormones to spur on bone and muscle growth. However, some health conditions, such as hypothyroidism (underactive thyroid), can interfere with a person’s ability to make the right amount of growth hormones and cause them to grow shorter than expected.
There are some things that can be done to help people look taller, such as having a good posture and doing strength training exercises. There are also a few medical treatments that can help people become taller, such as the growth hormone human chorionic gonadotropin. However, most people will not be able to get taller than their genes allow as they are older. If you have a health condition that prevents you from growing as tall as you would like, talk to your doctor about treatment options. However, it is important to learn to accept the height you are and to focus on the positive aspects of your height. This will help you feel more confident about your appearance.닥터케빈의원