Martin Seligman pioneered the understanding of what is called “learned helplessness. He found that animals and people could get so used to not being able to act to improve their situation that they simply give up. This was a very important contribution to our understanding of depression and passivity.
In his book, Learned Optimism, he demonstrates how to learn, not helplessness, but its antithesis: optimism. The benefits of learning optimism are substantial. The studies have shown that there can be a difference of eight years between the life span of an optimistic person and that of a pessimistic person.
The optimist, of course, lives longer.
When one learns to be more optimistic, one can also expect to be healthier in general, to suffer less from depression, and to be more effective in one’s life. Optimists are happier and more resilient.