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Most of us know pre-emptive well being in the form of the Eight fold path. It is the essential strengthening of the spiritual immune system. A sort of Buddhist pro-biotic. Without a doubt our major tool is the diversity of regular and irregular meditations. I recommend meditation a lot as many here do, so let us examine some of the 'other stuff':
Humour makes us more able to cope and also examine issues that are keen to dismiss. It is healthy, stimulating our immune system. Laughing is good for us.
Music changes, enhances and improves our mood. As lay people, we can improve our life through sound. I tend to like silence, so not my tool of choice.
What do you find increases your well being?