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https://www.youtube.com/watch?v=a5_JgBRl6UU
As we get older, the telomeres, the protective caps of chromosomes, get shorter until they no longer protect the chromosome and that is when cells begin to die.
Barometric Oxygen Therapy
The most powerful trigger in our body that can stimulate stem cells is Hypoxia (lack of oxygen). When there is a lack of oxygen, it serves as a signal to the body that there was hypoxia and now there is a problem. Let's start to replicate. Unfortunately, triggering hypoxia is unhealthy.
It was discovered that the body would respond the same way as experiencing hypoxia if we had a sudden change in oxygen levels.
Increasing pressure allows more oxygen to enter lungs. If we increase pressure and then decrease pressure to normal levels, it was descoverd to trigger the same response as hypoxia which triggers your body to create/stimulate stem cells.