Secret keeping is immensely stressful; it has well-documented effects on things like immune function and even longevity.

要保守秘密会有很大的压力：对免疫系统、甚至寿命的影响都有过详尽记录。

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The study indicates that, not only does oral contraception not increase risk for disease or death, but it may provide some protection and even increase longevity for women.

该研究表明，口服避孕药不仅不会增加患病和死亡的危险，还能为女性提供保护甚至让女性更为长寿。

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Studies have found that the intensity of a person's smile can help predict life satisfaction over time and even longevity.

WSJ: Stress-Busting Smiles

That said, even if an investor has longevity and inflation risk under control, an investor still faces investments that can be volatile, even over longer periods of time.

FORBES: Is Your Adviser Working as Your Chief Risk Officer (CRO)? Part I: The Importance of Managing Investment Risk

GDP, a figure certain to rise as Italy's awkward demographics of low birth rate and increasing longevity push the scheme even further out of financial balance.

ECONOMIST: Italian pensions