Push-ups look so deceptively easy. Everyone knows how to do them in theory, but when asked to do one, most people make various little mistakes that can cause problems and injuries down the road. These subtle mistakes are common and simple to fix once you’re aware.

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Welcome to the Friday Open Thread, hosted by Hackerspace, the reader-run community associated with Lifehacker! If you can think of nothing to say, today’s theme is doodling software. We all know that Liveskittles is plugging away in MS Paint - what’s your setup? That gif’s a 3D printer pen that’s just shipping after a couple years.

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Dark spots on fruits and vegetables can make them look unappetizingn and spoiled, but they’re actually just as edible as the spot-free ones. Here’s why.

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The sunset has been delayed. Microsoft has decided to postpone the shutdown of the Sunrise calendar app as they continue to integrate its features within Outlook.

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Some gyms are better than others. They might have nicer facilities, a better price on membership, or more bonus amenities to sweeten the deal. But none of that matters if it’s so far out of your way that you’ll never go.

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