The journal Nature Communications made the suggestion that human life span can go up to 150 years. This was determined by the number of step counts and examination of blood cells. What was seen is that blood cells gradually lose the ability to return to a stable condition. There might be a pace of aging and as people age the ability to recover from certain diseases or other events become more complicated. Overtime the body loses biological resilience. The study however, should be subject to the scientific method. The question remains why has no one reached 150 so far. There are other organisms that outlive humans. Bowhead whales and Greenland sharks can live over 200 years. The oldest person documented is Kane Tanaka. She is currently 119 years old. Jeanne Calment was 122 when she died in 1997. This would suggest that 150 years would not be attainable by natural means . There is a limitation to human life span. If it were to go any further, some form of life extension technology would have to be utilized. Those who do live long are of interest to health science and gerontology . Certain habits, environments, and genetics could all be factors in longevity. The study analyzed blood cell counts and number of steps by the samples compiled by age groups. It did not take into account factors such as diet or if exercise was part of their daily routine. What can be said with certainty is that cell physiology might have a link to aging and life span.
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