Klotho is one of the few longevity-associated genes shown to work in both directions; lower expression shortens life span in animal studies, while increased expression modestly slows aging. Despite several decades of research, scientists have yet to reach a full understanding of how klotho influences life span. The klotho … Read more
State of Physical Fitness is a Reliable Predictor of Age-Related Mortality Being more physically fit at a given age reliably correlates with a lower future mortality risk. While human epidemiological data can only provide correlations, animal studies can and do provide evidence for physical fitness and exercise to modestly … Read more
Lowered Iron Levels in Hematopoietic Stem Cells Reverse Some Age-Related Dysfunction Researchers here report on a way to reverse some of the age-related dysfunction observed in the hematopoietic stem cell population resident in bone marrow. These cells are responsible for generating red blood cells and immune cells. Some fraction … Read more
Researchers here report on an assessment of epigenetic clocks (and PhenoAge). The study is one of a fair number of attempts to quantify just how effective these aging clocks are when it comes to predicting age-related disease and death. The interesting conclusion here is that epigenetic age acceleration, as … Read more
Frailty is an inevitability for everyone on some timescale, given the present state of medical technology. It is not, however, an inevitability for early old age. It can be postponed for decades. Further, if someone becomes frail in earlier old age, that frailty may be reversible given sufficient effort … Read more
There are medical conditions that occur only in old age, and there are medical conditions, such as cancer, that can occur at any point in life, but more so in the old. Then there are grey area conditions that may occur to some greater degree in later life, or … Read more