Why does your body change when you get older?

Answer 1

Body changeing during human ageing is a multidimensional process comprising various physical, psycholgical and social changes in ourselves The simple facts everybody knows are that everybody in the world is getting older every single day of their life from their date of birth till their eventual date of death. But we also know everybody is different in how these factors are observed. We do all know that because of continual ageing as long as we continue to live our appearance is bound to gradually change; This happens throughout our childhood, then during our adolescence, then during adult life and into old age if we continue live that long. We also all know we are all going to die at some uncertain date in our future but nobody knows when or how they as an individual will die.

But what nobody really knows is exactly why this whole ageing scenario happens to us all. Indeed among top researchers and biologists there are several different unproven theories about precisely why people do age. Some say ageing is derived from just one human tissue, others maintain that our aging originates in all tissues. Some contend that one type such as our bone marrow stem cells may be crucial; Others disagree on that one. But nobody is too certain about that either. Most researchers do seem to conclude that your intrinsic body cellular mechanisms are the main factor that cause your ageing, modulated in different individuals in different ways by extracellular factors like your hormones and/or your inter cell communication. We also know your lifestyle (such as how much exercise you take and how much and what you eat and drink) as an individual and its effect on your health and fitness does very greatly affect your whole potential regarding your ageing either positively or negatively.

Research data does also seem to indicate that our ageing process is associated with several chemical, structural, and functional changes in our brain that being in conjunction with various neurocognitive change. But as yet no certain way has been discovered of halting or reversing ageing of humans. Ageing just continues to be a component of everybody's life on Earth.

But overall whether ageing is actually caused by continuing damage to our tissues whether due to normal toxic by-products of your metabolism or if it is due to inefficient repairing of your body's defensive systems happening throughout your lifespan is uncertain. The general idea behind damage-based theories of aging is that a slow build-up of damage, starts even before you are born and this just goes on and on during your life until eventually failure of the a critical organ like your heart or your whole body such as through cancer causes your life to end. That crucial failure can be a natural process or it can be due to some accident to you like being involved in a car crash or it can be due to somebody else intentionally killing you, such as in an act of war. But that leaves the bottom line to the question "why do we all get older and older throughout our life, the answer is we just do not yet really know for sure.