By John J. Medina
A couple of grey hairs and 2 wrinkles are usually the 1st seen symptoms of getting older on bodies. for many folks, despite the fact that, getting older continues to be mostly a secret. we will be able to basically ask yourself why we need to age and what casualty of age hovers within sight. Written in daily language, The Clock of a long time takes us on a journey of the getting older human body--all from a study scientist's viewpoint. From the planned production of organisms that stay thrice their usual span to the isolation of genes which could let people to do an identical, The Clock of a long time additionally examines the most recent discoveries in geriatric genetics. Sprinkled through the pages are descriptions of the getting older of many ancient figures, corresponding to Florence Nightingale, Jane Austen, Billy the child, Napoleon, and Casanova. those tales underscore the typical bond of senescence that unites us all. The Clock of a long time tells us why.
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Additional info for The Clock of Ages: Why We Age, How We Age, Winding Back the Clock
Thus families share similar molecular identity — and identical twins have exactly identical uniforms. That is why you stay healthy for so long and it is why you get so sick when an organism like Mycobacterium tuberculosis learns to overwhelm the system (Figure 5). To understand the connection, we first have to find out how it develops. These cells have to be taught three obvious facts. Page 35 Figure 5 Page 36 (1) Self and nonself uniforms exist; (2) Cells that possess nonself uniforms are to be destroyed; (3) Cells that possess self uniforms are to be left alone.
To understand the connection, we first have to find out how it develops. These cells have to be taught three obvious facts. Page 35 Figure 5 Page 36 (1) Self and nonself uniforms exist; (2) Cells that possess nonself uniforms are to be destroyed; (3) Cells that possess self uniforms are to be left alone. Unfortunately, you are also making cells that can bind and destroy things that possess your uniform. The result? Obviously, these familiar yet hostile cells have to be eliminated, or at least shut down.
And lo and behold, they also become immortalized. In this chapter, we need only understand that such a question actually exists. The purpose of starting out in this fashion has been to rethink the way we view aging and death biologically. We can only come up with average life span, grieving when life is cut short, marvelling when it is expanded, satisfied when it is about right. We even discovered a reproductive rule: those organisms that have sex generally leave a parental corpse; those creatures that don't have sex are compensated by potential immortality.