{"id":4772,"date":"2016-08-02T20:35:28","date_gmt":"2016-08-02T20:35:28","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/ap1x2-91\/?post_type=chapter&#038;p=4772"},"modified":"2017-05-09T17:16:29","modified_gmt":"2017-05-09T17:16:29","slug":"theory-1-aging-by-program","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/atd-herkimer-biologyofaging\/chapter\/theory-1-aging-by-program\/","title":{"raw":"Theory 1: Aging by Program","rendered":"Theory 1: Aging by Program"},"content":{"raw":"<ul>\r\n \t<li>There is strong evidence supporting the suggestion that aging is in some manner programmed into each species, including humans.<\/li>\r\n \t<li>This may be controlled neurologically or hormonally through the hypothalamus.<\/li>\r\n \t<li>Other\u00a0studies suggest that aging is controlled by the thymus.\r\n<ul>\r\n \t<li>The gland atrophies at about the onset of adolescence.\u00a0 This\u00a0implies that aging occurs more readily in the absence of the thymus gland.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li>In studies cultured\u00a0cells of a specific type divided a consistent number of times.\u00a0 This implies that the cell's life cycle is controlled\u00a0within the cell, rather than externally by the hypothalamus\u00a0or thymus.\r\n<ul>\r\n \t<li>Scientists agree that although normal cells may\u00a0have a limited number of times they can divide this is\u00a0only rarely, if ever, reached in the body.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>","rendered":"<ul>\n<li>There is strong evidence supporting the suggestion that aging is in some manner programmed into each species, including humans.<\/li>\n<li>This may be controlled neurologically or hormonally through the hypothalamus.<\/li>\n<li>Other\u00a0studies suggest that aging is controlled by the thymus.\n<ul>\n<li>The gland atrophies at about the onset of adolescence.\u00a0 This\u00a0implies that aging occurs more readily in the absence of the thymus gland.<\/li>\n<\/ul>\n<\/li>\n<li>In studies cultured\u00a0cells of a specific type divided a consistent number of times.\u00a0 This implies that the cell&#8217;s life cycle is controlled\u00a0within the cell, rather than externally by the hypothalamus\u00a0or thymus.\n<ul>\n<li>Scientists agree that although normal cells may\u00a0have a limited number of times they can divide this is\u00a0only rarely, if ever, reached in the body.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-4772\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Original<\/div><ul class=\"citation-list\"><li>Theory 1: Aging by Program. <strong>Authored by<\/strong>: Kelly, Jessica. <strong>Provided by<\/strong>: Herkimer College. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/NA\">http:\/\/NA<\/a>. <strong>Project<\/strong>: AtD Course. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":339,"menu_order":2,"template":"","meta":{"_candela_citation":"[{\"type\":\"original\",\"description\":\"Theory 1: Aging by Program\",\"author\":\"Kelly, Jessica\",\"organization\":\"Herkimer College\",\"url\":\"NA\",\"project\":\"AtD 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