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  • Important Publications Many papers have provided reasons for why women live longer than men. These include XX vs. XY chromosomes, sex hormones, and better care of their health. These factors certainly can affect male and female health, but none of these factors has been proven to explain the actual difference that exists in life expectancy between the sexes. However, a factor commonly ignored is the size difference between men and women. Past research has shown that differences in male and […]

  • Reventropy Associates was established in 1993 to focus on the ramifications of a world population that is constantly increasing in height and body weight. While many researchers have delved into specific areas of human height and growth, none has been devoted to the systematic evaluation of this critical area of human civilization. Tom Samaras founded Reventropy Associates and has worked with Harold Elrick, MD, Lowell H. Storms, PhD and Jonn Desnoes, MD, PhD, OMD, Andrzej Bartke, PhD, David Rollo, Ph.D, […]

  • Observations by various scientists on human height or body size  are given below. Only a few are presented out of a list of 119 similar comments.

    “...the smaller the mean height at age 18 in a province, the higher the chance for people living there to reach high chronological ages.”  My note: based on about 1.3 million deaths.

    Source: Holzenberger et al. Decelerated growth and longevity in men. Arch Gerontol Geriatr 1991, 13, 89-101

    “It seems that being bigger, and presumably better, comes with very high costs.” [The costs he is referring to are higher levels of cancer and heart disease.]

    Source: p. 102 Campbell & Campbell. The China Study. 2006, Benbella, Texas.

    “Smaller individuals of the same species, including humans, also tend to live longer.” p.572

    Source: de Magalhaes JP and Faragher RGA. Cell divisions and mammalian aging:  integrative biology insights from genes that regulate longevity. BioEssays 2008, 30, 567-578.

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