How to encourage a depressed SEI?

[Skepsis]

so now is about leading an unhealthy life instead? (i mean if is about "comfort," certain things like over-eating might be um, "uncomfortable.")

i just don't really think being healthy is type-related... although people's reasons/causes for their healthiness or unhealthiness may very well be.

Cognitive functions are so loosely defined that they can mean anything you want. I've seen Si defined as anything from having a preoccupation with living a healthy life style to preferring one's own comfort at the expense of one's health, which would be ignoring your health entirely The latter is often used as justification for being another type with non-dominant Si.