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How to Clear the Data on Your Old Phone Before You Sell It

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So you’ve decided to upgrade to the latest and greatest smartphone. Congratulations! Enjoy that fancy new selfie camera and perfectly uncracked screen. But if you’re selling your old phone in the process, you shouldn’t just hand it over without first taking a few security precautions.

Wired has a guide to wiping the data off your phone before selling it, and the process is pretty easy. First, you’ll want to make sure to back up or sync all your data.

On an iPhone, unpair any devices (like an Apple Watch) that you have connected to your phone, then sign out of iCloud in your settings. Just go to Settings, then click on your name in the first entry to get to the sign-out button. If you’re jumping the Apple ship and buying an Android phone, you’ll also want to turn off iMessage in your settings (under Messages) too. Then, all you have to do is clear your data. Under your settings, go to General, and all the way at the bottom you should see the button for Reset. Hit Erase All Content and Settings and you’re good to go.

If you’re wiping an Android, things are slightly different, but still quite basic. Make sure to save your apps to your account—hit the Account Sync button under settings and then Sync Now—and then back up your data to Google Drive by going into System > Back Up > Back Up to Google Drive. Then wipe your data by going back into System and hitting Reset. Go to Factory Data Reset, which will return your phone to its original state.

Once you follow those steps, you’ll all set to safely sell off your phone and rake in that sweet, sweet cash.

[h/t Wired]

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Why You Should Think Twice About Drinking From Ceramics You Made by Hand
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Ceramic ware is much safer than it used to be (Fiesta ware hasn’t coated its plates in uranium since 1973), but according to NPR, not all new ceramics are free of dangerous chemicals. If you own a mug, bowl, plate, or other ceramic kitchen item that was glazed before entering the kiln, it may contain trace amounts of harmful lead.

Earthenware is often coated with a shiny, ceramic glaze. If the clay used to sculpt the vessel is nontoxic, that doesn’t necessarily mean the glaze is. Historically, the chemical has been used in glazes to give pottery a glossy finish and brighten colors like orange, yellow, and red.

Sometimes the amount of lead in a product is minuscule, but even trace amounts can contaminate whatever you're eating or drinking. Over time, exposure to lead in small doses can lead to heightened blood pressure, lowered kidney function, and reproductive issues. Lead can cause even more serious problems in kids, including slowed physical and mental development.

As the dangers of even small amounts of lead have become more widely known, the ceramics industry has gradually eliminated the additive from its products. Most of the big-name commercial ceramic brands, like Crock-Pot and Fiesta ware, have cut it out all together. But there are still some manufacturers, especially abroad, that still use it. Luckily, the FDA keeps a list of the ceramic ware it tests that has been shown to contain lead.

Beyond that list, there’s another group of products consumers should be wary of: kiln-baked dishware that you either bought from an independent artist or made yourself. The ceramic mug you crafted at your local pottery studio isn’t subject to FDA regulations, and therefore it may be better suited to looking pretty on your shelf than to holding beverages. This is especially true when consuming something acidic, like coffee, which can cause any lead hiding in the glaze to leach out.

If you’re not ready to retire your hand-crafted ceramic plates, the FDA offers one possible solution: Purchase a home lead testing kit and analyze the items yourself. If the tests come back negative, your homemade dishware can keep its spot on your dinner table.

[h/t NPR]

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Smiling Could Improve Your Athletic Performance—But Your Grins Can't Be Fake
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Athletes obviously enjoy breaking a sweat, but it’s not often that you’ll see one break into a smile while in the throes of competition. Yet that’s exactly what many coaches instruct them to do: Grinning mid-race has been said to relax muscles and boost physical performance. Recently, a group of researchers put this theory to the test, according to The New York Times. Their findings were published in the journal Psychology of Sport and Exercise.

Researchers from Ulster University in Northern Ireland and Swansea University in Wales instructed a group of 24 non-professional runners—both men and women—to shift between smiles and scowls while running on a treadmill. The volunteers were told that the experiment would measure how certain factors affected the amount of oxygen they used while jogging at various running speeds.

For the experiment’s first stage, runners wore face masks that measured their breathing. As they exercised until fatigue, researchers asked them to rate how they felt and report their coping strategies—for example, whether were they ignoring their pain or embracing it.

The study’s second segment required volunteers to engage in four individual runs, each lasting for six minutes. Mid-run, they were told to smile both genuinely and continuously, to scowl, to relax their torsos using a visualization technique, or to simply fall back on their usual endurance mindsets.

Smiles didn’t always improve runners’ performances. A few subjects picked up the pace while grimacing, possibly because these “game faces” made them ultra-determined to beat their personal records. But overall, runners with smiles were nearly 3 percent more efficient than normal. While seemingly insignificant, this difference is large enough to affect someone’s race performance, experts say.

Keeping in mind the study’s small size, the authors conclude that exercising while smiling might reduce muscular tension and thus amp up performance. But in order to gain this positive effect, athletes must beam genuinely. Fake smiles, like the kind you’ll see in school pictures, don’t work as many facial muscles, and therefore result in lower levels of relaxation.

Since it’s hard for anyone (let alone a focused athlete) to maintain an authentic smile during prolonged periods of strenuous activity, scientists suggest smiling near a race’s end, in 30-second intervals.

[h/t The New York Times]

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