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1. www.webmd.com › sex-relationships › masturbation-guideMasturbation - Is Masturbation Normal or Harmful? Who ...

   www.webmd.com › sex-relationships › masturbation-guide

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   2022年12月16日 · Masturbation is the self-stimulation of the genitals to achieve sexual arousal and pleasure, usually to the point of orgasm (sexual climax). It is commonly done by touching, stroking, or...

2. www.webmd.com › sex › anal-sex-health-concernsIs Anal Sex Safe? What to Know - WebMD

   www.webmd.com › sex › anal-sex-health-concerns

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   2024年4月11日 · Anal sex is the term used for any sexual activity that involves the anus. It doesn’t always include anal intercourse. The anus is full of nerve endings, making it very sensitive, and many people...

   • 作者: Mary Anne Dunkin

3. www.webmd.com › sex › what-is-oral-sexOral Sex: What It Is and What It Means - WebMD

   www.webmd.com › sex › what-is-oral-sex

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   2024年6月4日 · 11 min read. What Is Oral Sex? Oral sex is a common sex act among couples of all ages and genders. It involves using your tongue, lips, or mouth to stimulate your partner’s genitals or anus. Many...

4. www.webmd.com › diabetes › what-is-c-peptide-testC-Peptide Test: Levels, Purpose, Procedure, and Results - WebMD

   www.webmd.com › diabetes › what-is-c-peptide-test

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   2023年3月4日 · The C-peptide test is a tool your doctor uses to test whether you have type 1 diabetes, when the immune system attacks and destroys cells in the pancreas, or type 2, when your body doesn't use...