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Much research has been done on the antagonistic effects of increased growth on lifespan. Specifically, the hormone insulin-like growth factor 1 (IGF-1), binds to a cell receptor, leading to a phosphorylation cascade. This cascade results in kinases phosphorylating forkhead transcription factor (FOXO), deactivating it.
K. Warner Schaie was born in 1928 in Stettin, which was then part of the Weimar Republic and now is part of Poland.He moved to California in 1947 and worked his way through undergraduate school using his skills as a printer. [1]
According to the Life-span model of motivation the personal goals that individuals set are a function of the opportunities and challenges that are present in their social environment. Personal goals are an important determinant to the way individuals direct their development . [ 1 ]
Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1]
The development of the human mind is complex and a debated subject, and may take place in a continuous or discontinuous fashion. [4] Continuous development, like the height of a child, is measurable and quantitative, while discontinuous development is qualitative, like hair or skin color, where those traits fall only under a few specific phenotypes. [5]
Aging and longevity researchers utilize LQ with additional metrics such as maximum species life span (MLSP). Rochelle Buffenstein considers MLSP as an important species aging characteristic that can vary over a factor of 40,000 throughout the animal kingdom, and is related species increase in body size. [ 5 ]
Life cycles can be divided into two major stages: growth and reproduction. These two cannot take place at the same time, so once reproduction has begun, growth usually ends. [9] This shift is important because it can also affect other aspects of an organism's life, such as the organization of its group or its social interactions. [8]
Paul B. Baltes (18 June 1939 – 7 November 2006) was a German psychologist whose broad scientific agenda was devoted to establishing and promoting the life-span orientation of human development. He was also a theorist in the field of the psychology of aging.