The Importance of Subjective Well-Being

I would just find it personally interesting whether there is some sort of optimal level in happiness and well-being for example. can having too few negative experiences somehow backfire and be negative. I was lucky enough that I did my graduate work with Ed and you know and I've always kept in touch with him over the years. He really opened up this field and in the week since his death it's beenreally illuminating as I'm grading papers in my class every student is citing him.