"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Turning 40 is cause for celebration! It's the start of a new decade in your life. If you're looking for a ...

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All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Turning 40 is a pretty ...

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Birthdays always feel like big milestones, but there's something about the transition from your 30s to 40 that feels especially major. The big 4-0 can make you feel both older and wiser. It can elicit ...