I agree that depression is an overused word and wish your wife the best.
However, the article absolutely does not say that depression is "just not wanting to get off the couch". It specifically states that this is referred to as sickness behaviour, not depression, and the very next paragraph contrasts them as distinct but superficially similar.
However, the article absolutely does not say that depression is "just not wanting to get off the couch". It specifically states that this is referred to as sickness behaviour, not depression, and the very next paragraph contrasts them as distinct but superficially similar.