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2022年12月16日 · Masturbation is a very common behavior, even among people who have a sex partner. In one national study, 95% of males and 89% of females reported that they have masturbated. Masturbation is the ...
2024年1月11日 · Oral sex is a common sex act among couples of all ages and genders. Also referred to as fellatio or cunnilingus, it involves oral stimulation of a partner’s genitals or anus. Oral sex is often a ...
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...
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 ...
2023年3月23日 · Phellodendron (Phellodendron amurense) is a plant found in tropical parts of Asia. Its thick bark is used to make medicine. It contains berberine. Some chemicals in phellodendron might reduce...
