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Stunted growth, also known as stunting or linear growth failure, is defined as impaired growth and development manifested by low height-for-age. [1] It is a manifestation of malnutrition (undernutrition) and can be caused by endogenous factors (such as chronic food insecurity) or exogenous factors (such as parasitic infection).
Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. [11] [12] Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form.
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In addition to increasing height in children and adolescents, growth hormone has many other effects on the body: Increases calcium retention, [41] [citation needed] and strengthens and increases the mineralization of bone; Increases muscle mass through sarcomere hypertrophy; Promotes lipolysis; Increases protein synthesis
Figure 1: A bi-phasic bacterial growth curve.. A growth curve is an empirical model of the evolution of a quantity over time. Growth curves are widely used in biology for quantities such as population size or biomass (in population ecology and demography, for population growth analysis), individual body height or biomass (in physiology, for growth analysis of individuals).
Image credits: historycoolkids #2. Queen Elizabeth has died at age 96. She spent 7 decades on the throne, which was longer than the reigns of her father, uncle, grandfather, and great-grandfather ...
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The height, weight, and head circumference of a child can be compared to the expected parameters of children of the same age and sex to determine whether the child is growing appropriately. Growth charts can also be used to predict the expected adult height and weight of a child because, in general, children maintain a fairly constant growth curve.