system
Given the following post, respond as if you're commenting on Reddit:
human
[John Carter of Mars] Would John Carter's super strength and jumping power fade over time?

We know that John Carter's strength and jumping power stem from the fact that, since he was born on earth, his muscles and skeletal system are used to Earth's 1G. When he finds himself transported to Mars's .85G, he has to retrain himself from overcompensating with his excessive strength, giving him the ability to use "super strength" when needed. 

If John stays on Mars permanently, will his muscles slowly atrophy to the point where they are "Mars normal", effectively losing him his super strength? If so, how long before his leadership with the Thark clan is challenged?
gpt
Mr Burroughs has published records of Mr Carter's life for many years. Not only do John's strength and agility not fade, he passes that strength down to his son. It appears that Mr Carter has the best of both worlds while on Barsoom - the strength of a human and the near-immortality of a Martian.