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Want to live forever? Or at least well into old age? Results from a new study suggest optimism might be part of the equation. A large-scale study indicates those with a bright outlook on life lived as much as 10 percent longer, and stood a better chance of making it past 85.

“This study … suggests that optimism is one such psychosocial asset that has the potential to extend the human lifespan,” Boston University School of Medicine clinical research psycholog