I find that my mood is affected (positively) when I tan in a bed. I grew up in TX, and now live in WA, so the rainy season tends to bring me down...that and working 10 hour days, and not "getting" to see the sun. I don't tan excessively, but like having a little 'color' to my skin during the summer months too...hehe...tan fat looks better than white fat (a little joke with my co-workers)