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1. www.webmd.com › sex › birth-controlPlan B (Morning-After Pill): Effectiveness and Side Effects

   www.webmd.com › sex › birth-control

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   2023年3月12日 · It contains the hormone levonorgestrel. It’s also called the morning-after pill. But you don't have to wait until the morning after sex to take it. In fact, levonorgestrel is more effective the ...

   • 作者: Annie Stuart

2. www.webmd.com › balance › features9 Ways to Combat Fatigue and Get Your Energy Back - WebMD

   www.webmd.com › balance › features

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   2023年12月27日 · A 10-minute nap is usually enough to boost energy. Don’t nap longer than 30 minutes, though, or you may have trouble sleeping that night. A nap followed by a cup of coffee may provide an even ...

   • 作者: Peter Jaret