"Energy" is a metaphor to which most people relate so it gets used a lot. Stress level might be a good thing to examine on the other side. If I spend too much t

"Energy" is a metaphor to which most people relate so it gets used a lot. Stress level might be a good thing to examine on the other side. If I spend too much time in traditionally extroverted activities I start to get fuzzy-headed and show signs of fatigue, then irritability and stress. There's a balance point where I'm at my best, and that point is when I'm getting lots of uninterrupted solitude but having daily interaction with my core group of people (family, close friends). For other people the balance point is very different. Being far away from your balance point for extended periods leaves one feeling out of sorts, stressed, and maybe even a bit desperate. I guess what I'm saying is that it's not so much that one side is a source of energy. It's just normal. It's more that the opposite side is draining.