TikTok users claim that drinking the "sleepy girl mocktail," a mixture of magnesium powder, tart cherry juice and other ingredients, can help you sleep. But does it really work? NPR's health correspondent Maria Godoy brings us the science behind the trend – and magnesium's effect on sleep.

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Sometimes you're just feeling blah: the weather's bad, you can't get out of bed and you're struggling to shake off that listlessness. In these moments, the solution is often simpler than we think. This episode, NPR's science desk and Life Kit staff present research-backed mood boosters to instantly shake yourself out of a slump and turn your day around.

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Strong muscles are good for us. They help prevent injuries, strengthen bones and improve balance. But it can be hard to build muscle mass if you're intimidated by the weight room or unsure of how much weight to lift. Writer and audio producer Alex Sujong Laughlin shares her weightlifting journey — and her own tips and challenges along the way. This episode was originally published October 12, 2021.

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We could all be eating more vegetables. One fast way to do that: toss them in a salad. To make a crave-worthy salad you'll actually want to eat, don't be afraid to experiment with flavors (like kimchi or sauerkraut), add texture (think candied nuts or thinly sliced red cabbage) — and treat yourself to a freshly made homemade dressing. This episode originally published July 24, 2023.

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Making sure you're protected from the summer sun starts with a good sunscreen. But how do you know which sunscreen is best, how much to use or when to reapply? In this episode from Short Wave, NPR health correspondent Allison Aubrey shares the six common mistakes people make with sunscreen — and how to level up your sunscreen game.

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For decades, health experts have relied on body mass index (BMI), a ratio of weight to height, to classify people as underweight, normal weight, overweight or obese. But sometimes, you need more than two numbers to understand your health. For example, BMI can't tell you how much of your weight is fat versus muscle. That's why a growing number of researchers and physicians prefer other metrics instead. NPR health correspondent Allison Aubrey breaks down the history and shortcomings of BMI, and shares other methods to get a fuller picture of your body.

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There are a lot of misconceptions about sleep. Sleep scientist Rebecca Robbins and her colleagues looked into common myths about sleep to help everyone get a better night's rest. This episode originally published Janaury 9, 2024.

Want better sleep? Sign up Life Kit's Guide to Better Sleep, our special newsletter series. When you sign up, you'll receive a series of emails over one week with tips you can try that very night to prioritize and improve your sleep. Sign up at npr.org/sleepweek.

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The summer's first major heat wave has arrived. Our bodies do have natural ways to dissipate heat, but when temperatures get extreme, sometimes they just can't keep up. In this episode of Life Kit, learn how to keep cool, hydrated and safe in extreme heat.

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Drowning is the No. 1 cause of death for children ages 1-4 in the United States. To prevent drownings, make sure there's always a designated adult watching the water whenever kids are swimming. We'll cover other water safety tips to protect young swimmers safe this summer.

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Do you ever feel like your memory lets you down when you need it most? If you forget your keys every time you leave the house, struggle to remember new names or just need a boost before a big test, you might be in need of some memory training. Trivia and memory experts share their best tips for recalling more and warding off everyday forgetfulness.

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