Growth and Menstruation During Adolescence: Key Insights

Puberty Issues

Hello, I started my menstruation in sixth grade, and I am currently in the first year of high school.
Do I still have a chance to grow taller? I have been doing core exercises and strength training for a short period, less than a month, almost every day.
Will these two types of exercises affect my height? Also, I heard that doing intense exercise or jumping high within three hours of waking up in the morning can impact height.
Is this true? Thank you, doctor.

Lán tiān, 10~19 year old female. Ask Date: 2016/08/22

Dr. Zhang Kunmin reply Obstetrics and Gynecology

Hello, the main factors that influence height are as follows:
1.
Genetics: Children of taller parents tend to be taller, while those of shorter parents are usually shorter.
However, this is just one factor; if a child has good conditions in other aspects, they can still achieve a certain height as they grow.
2.
Nutrition: Calcium, vitamin D, and protein are the most significant nutrients affecting human height.
These have a substantial impact on height, and many individuals with good genetic potential may not grow tall due to malnutrition.
3.
Exercise: Physical activity can stimulate the appetite of shorter individuals, allowing them to replenish nutrients.
A diet rich in animal protein and calcium can promote growth, while other high-calorie foods may not be effective.
4.
Sleep: The pituitary gland only produces growth hormone during sleep, which affects height.
5.
Development: The timing of development significantly influences human height.
Generally, girls are shorter than boys because they tend to develop earlier, which is why girls are often taller than boys during elementary school.
Boys typically develop later, so an average boy may end up taller than an exceptionally conditioned girl by high school.
Boys can grow up to 25 centimeters taller than the taller parent, while girls can be up to 25 centimeters taller than the shorter parent.
Additionally, early and late maturation can also affect height; a late-maturing boy may not start developing until ages 14 to 16, and since his growth period is longer (generally around 20 years for boys), he may end up taller than an early-maturing individual.
Thank you! Wishing you peace and health.
Dr.
Zhang

Reply Date: 2016/08/22

More Info

Understanding growth during adolescence, particularly in relation to menstruation and physical activity, is crucial for both physical and psychological well-being. When a girl begins menstruating, it typically indicates that she is entering puberty, which is a significant phase of growth and development. Menstruation usually starts between ages 9 and 16, and for many girls, it can be a sign that their growth plates are beginning to close, which can limit future height potential.

In your case, starting menstruation in sixth grade means you likely entered puberty earlier than average. The growth spurt associated with puberty generally occurs before and during the onset of menstruation, with girls typically experiencing their peak growth rate around 12 years old. After menstruation begins, growth tends to slow down, and the growth plates in the bones gradually close, which can limit further height increase. However, it is important to note that every individual is different, and some girls may continue to grow for a few years after their first period, albeit at a slower rate.

Regarding your question about whether you still have a chance to grow taller, it is possible, but the extent of growth may be limited. Most girls reach their adult height by the age of 16 to 18, depending on when they started their menstrual cycle and their overall growth patterns. If you are currently in high school, you may still have some growth potential left, but it is likely to be less than what you experienced before your first period.

As for your exercise routine, core and strength training exercises are generally beneficial for overall health and can contribute positively to your physical development. These types of exercises can help improve posture, strengthen muscles, and enhance athletic performance. However, they do not directly influence height. Height is primarily determined by genetics, nutrition, and hormonal factors, particularly growth hormone levels during puberty.

Regarding the claim that you should avoid intense exercise or jumping high within three hours of waking up, there is no substantial scientific evidence to support this as a factor affecting height. While it is essential to listen to your body and ensure you are well-rested before engaging in strenuous activities, the timing of your workouts in relation to your sleep does not have a direct impact on your growth potential. Instead, focus on maintaining a balanced routine that includes adequate rest, nutrition, and hydration.

In summary, while you may still have some opportunity for growth, it is essential to manage your expectations based on your current stage of development. Engaging in regular physical activity, including core and strength exercises, is beneficial for your overall health and fitness, but it will not significantly alter your height potential. If you have concerns about your growth or development, consider consulting with a healthcare professional who can provide personalized guidance based on your individual circumstances.

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