You need lower dosages of pharmaceutical interventions for humans, as compared to mice. The agreed conversion rate is mouse dosage divided by 12.5 for human dosage.
Might that be the same for humans? I do not mean the divisor (5,000 m divided by 12.5), but the principle that you need a lower dosage for humans. Would a lower dose of hypoxia work? Some evidence seems to answer yes. You do not need to live in Mount Everest.
Results of a four-year study by researchers at the University of Colorado suggest that living at altitudes around 5,000 feet (Denver is 5,280 feet above see level) or higher might increase lifespan. The study, recently published in the Journal of Epidemiology and Community Health, collated data from around the U.S. and found that, of the top 20 longest-living counties in the country, 11 for men and five for women were located in Colorado and Utah. Men lived on average 1.2 to 3.6 years longer and women 0.5 to 2.5 years more. When results were adjusted for other factors, including smoking and increased solar radiation, there was no significant difference between lowlanders and mountain folk. And among those with existing pulmonary disease, mortality increased. Still, the results suggest that hypoxic (lower oxygen) environments may bestow some health benefits for otherwise healthy people, and researchers want to find out more.
Doesnât work for people with COPD, however. Note, that is 5,000 feet, not meters. The effect seems modest - 1.2 to 3.6 years.
Is it dose dependent? The higher the altitude, the greater the longevity? Seems to be the case.
RESULTS: As the altitude increases, the longevity increases. Santa Cruz at 416m and La Paz at 3800m (average), both with around 2.7 million inhabitants each, have 6 versus 48 centenarians respectively.
That is an eight-fold increase in nonagenarians.
My own question is, will the effect hold, if the dose is intermittent, like other interventions (rapamycin, fasting, caloric restriction)? Can you move to Santa Fe [7,199 ft (2,194 m)]New Mexico a few weeks twice a year, and get a proportionate longevity increase?