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  1. www.webmd.com › men › male-masturbation-5-things-you-didnt-knowMale Masturbation: 5 Things You Didn't Know - WebMD

    2023年12月19日 · 1. Masturbation doesn't have the health benefits that sex does. 2. Masturbation is not risk-free. 3. There's no "normal" amount of masturbation. 4. Masturbating doesn't reflect on your ...

  2. www.webmd.com › mental-health › addictionPornography Addiction: Why Pornography Is Addictive? - WebMD ...

    2022年9月4日 · But there may be some clues in the causes of compulsive sexual behavior. Things that lead to porn addiction could include: A brain chemical imbalance. Chemicals like serotonin and norepinephrine ...

  3. www.webmd.com › sexual-conditions › rash-on-penisWhy Do I Have a Rash on My Penis? - WebMD

    2023年5月27日 · Bacteria, sweat, and dead skin cells can build up and make the skin covering the head of the penis swell. This can lead to itching, a rash, and a discharge under the foreskin. The skin there might ...

  4. www.webmd.com › depression › major-depressionMajor Depression (Clinical Depression) Symptoms, Treatments, ...

    2022年9月28日 · In addition, according to the DSM-5 -- a manual used to diagnose mental health conditions -- you may have other symptoms with major depression. Those symptoms might include: Fatigue or loss of ...