[Suggestion] Moving at fast speeds, either on minecraft, or elytra, improves sanity.

[Xoxeyos]

I think it would be interesting for sanity to increase while moving at fast speeds, while it may not be in the case of the mine-cart, I would say the elytra is a tool that requires a good amount of exercise. The mine-cart could however decrease your mood if used in dark spaces, albeit I think that would be a bit redundant.