Let me explain how aging is complex, this list is definitely not complete or all inclusive.
Non-replaceable design:
Lets see as you get older the fin hairs in your ear (stereocilia in your cochlea) start to be destroyed by vibration one by one and hearing function decreases, this stereocilia are made once: during fetal development. This is true for many other cells such as the ova in ovaries, for humans only produced once and all die off by ~50 years of age. Many types of brain cells, teeth, ect.
- You can’t use nanorobots to fix these, cells need to be replaced, organs need to be re-grown.
- biorobots could fly in like stem cells and re-grow all these cells.
- The organs for these cells could be replaced.
Finite design:
All cells in the body suffer from a limited number of replications cycles things thanks to a lack of telomerase, and other genes that induce Senescence (cell againg) this cause the skin to wrinkle, hair to turn gray, organs to decay, ect.
- biorobots or stem cells could replace aging cells.
- Telomerase levels could be brought up by gene therapy.
- Aging organs could be replaced.
Cancer:
All cells are alive and as a living systems they ply to the laws of evolution, those cells that reproduce better will multiple, there are many safe guards to prevent this such as telomers, but mutation will find away around them, some cells will multiply uncontrollably. Cancer is guaranteed to happen if you live long enough, at present for an 80yr life space it happens to 1 out of 2 of us.
- Cancer must be made less lethal and curable
- Nanorobots or Biorobots under sentient control could hunt and destroy cancer cells
- The genetics of cells could be redesigned to make cancer far less likely.
Atherosclerosis and waste build up:
As you live your arteries get clogged and stiff with pelagic, heart failure and stroke become more and more likely and is guaranteed if you live long enough. Other materials build up inside the body as you age as well, toxins, crap in the lungs, ect.
- Nanorobots or Biorobots under sentient control could clean out this stuff.
- Organs could be replaced when they get abused up.
Memory:
The Brain like all physical things cannot store a infinite amount of data. If you lived long enough memories would over write memories, you would forget your past and you might as well just die, as it would be equivalent to it.
- The brain would have to be redesign for more memory storage, cybernetics could extend memory. But all this is a short-term replacement.
- Move your consciousness and memories to a form with near-infinite expandability (say a ultra-computer of some kind)
Non-replaceable design:
Lets see as you get older the fin hairs in your ear (stereocilia in your cochlea) start to be destroyed by vibration one by one and hearing function decreases, this stereocilia are made once: during fetal development. This is true for many other cells such as the ova in ovaries, for humans only produced once and all die off by ~50 years of age. Many types of brain cells, teeth, ect.
- You can’t use nanorobots to fix these, cells need to be replaced, organs need to be re-grown.
- biorobots could fly in like stem cells and re-grow all these cells.
- The organs for these cells could be replaced.
Finite design:
All cells in the body suffer from a limited number of replications cycles things thanks to a lack of telomerase, and other genes that induce Senescence (cell againg) this cause the skin to wrinkle, hair to turn gray, organs to decay, ect.
- biorobots or stem cells could replace aging cells.
- Telomerase levels could be brought up by gene therapy.
- Aging organs could be replaced.
Cancer:
All cells are alive and as a living systems they ply to the laws of evolution, those cells that reproduce better will multiple, there are many safe guards to prevent this such as telomers, but mutation will find away around them, some cells will multiply uncontrollably. Cancer is guaranteed to happen if you live long enough, at present for an 80yr life space it happens to 1 out of 2 of us.
- Cancer must be made less lethal and curable
- Nanorobots or Biorobots under sentient control could hunt and destroy cancer cells
- The genetics of cells could be redesigned to make cancer far less likely.
Atherosclerosis and waste build up:
As you live your arteries get clogged and stiff with pelagic, heart failure and stroke become more and more likely and is guaranteed if you live long enough. Other materials build up inside the body as you age as well, toxins, crap in the lungs, ect.
- Nanorobots or Biorobots under sentient control could clean out this stuff.
- Organs could be replaced when they get abused up.
Memory:
The Brain like all physical things cannot store a infinite amount of data. If you lived long enough memories would over write memories, you would forget your past and you might as well just die, as it would be equivalent to it.
- The brain would have to be redesign for more memory storage, cybernetics could extend memory. But all this is a short-term replacement.
- Move your consciousness and memories to a form with near-infinite expandability (say a ultra-computer of some kind)