Foot&Leg health factor (or longevity factor) F2 consists of foot angle, foot heel depth and rear legs-rear view.

F2为肢蹄因子（或者称为长寿因子），它包括蹄角度、蹄踵深度和后肢侧视。

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Many Okinawans share a genetic factor that helps prevent inflammation and autoimmune reactions; however, genes can only account for 10 to 50 percent of longevity.

很多冲绳人拥有一种有助于避免发炎和自体免疫反应的遗传因子；然而，基因对于长寿只有百分之十到百分之五十的贡献。

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Heart disease accounts for a large enough proportion of all deaths that any factor that promotes exceptional longevity almost inevitably must lead to decreased risk of cardiac death.

心脏疾病在所有死亡中占到了一个相当大的比例，以至于促进长寿的每一个因素都不可避免的降低了心源性死亡的危险。

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The Mediterranean diet is also likely to be a factor in Italian longevity.

BBC: Why do the Italians live longer than us?

However, an important factor to consider is longevity and the amount of time that this money will have to last.

FORBES: The Early Retirement Income Challenge: Longevity

In the end, my advice is to make sure the right questions are asked about version control, compatibility and longevity of the product in the same form factor.

FORBES: VeriFone: iPod 'Mobile Checkout' Coming To Non-Apple Stores Soon