I know you already sense this to be true, but playing outside does a mind (and body) good, more than indoor exercise, so says science.  Again, science confirms and affirms our intuition.  I love it when that happens!  The sun is shining today and spring is around the corner, so Go Play Outside!!
"...exercising in natural environments was associated with greater feelings  of revitalisation, increased energy and positive engagement, together  with decreases in tension, confusion, anger and depression. Participants  also reported greater enjoyment and satisfaction with outdoor activity  and stated that they were more likely to repeat the activity at a later  date.
Our research, which brings together data from a wide variety of sources,  adds significant weight to the case for spending more time in the  natural environment as members of the public and their clinicians fight  to counteract the negative outcomes of modern living, such as obesity  and depression."
http://www.sciencedaily.com/releases/2011/02/110204130607.htm
