Japanese masturbation research

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Two YouTube science vloggers have tackled the persistent rumours around masturbation- that it can cause blindness, infertility or hairy palms - and explained that a little bit of self love is actually good for you. The Canadian pair explain that chemicals released by masturbation include dopamine, which triggers the pleasure centres of the brain and reduces stress, endorphins which reduce pain - including menstrual pain in women - and prolactin, which aids sleep. According to the duo, males especially benefit from masturbation when they are under the weather, as it increases the production of bacteria-fighting white blood cells.

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The adaptive function of male masturbation is still poorly understood, despite its high prevalence in humans and other animals. In non-human primates, male masturbation is most frequent among anthropoid monkeys and apes living in multimale-multifemale groups with a promiscuous mating system. In these species, male masturbation may be a non-functional by-product of high sexual arousal or be adaptive by providing advantages in terms of sperm competition or by decreasing the risk of sexually transmitted infections.

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John F. Randolph, Huiyong Zheng, Nancy E. Avis, Gail A.

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This is Michio Nakamura's page. He received his Doctor's degree Science from Kyoto University in He is carrying out research on the grooming behaviors and cultural behaviors of chimpanzees at Mahale, Tanzania.

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And it has many health benefits. Here are 11 things you probably never knew about your favorite hobby. If you thought the first time you touched yourself and realized it felt really, really good was when you hit puberty, you might be wrong.

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Masturbation is safest sex you can have. It's so good for you, physically and mentally, that it only makes sense that it would be given a whole month of celebration: National Masturbation Month. What's also great about masturbating is you can literally do it anywhere.

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At a certain point, they reached a part of the cave that was pitch-black. They never spoke of it again. Brandon self-identifies as straight.

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