1) The sight of the glorious autumnal trees in the sunshine
2) A crisp morning with the fog blowing away
3) The kindness of loved ones as they look after us when we are not well
4) an unexpected gift of heathers for the garden, which will look wonderful all winter
5) A regular run in the morning, at one's own pace, running as fast as you can, getting all that adrenalin and endorphins going.