91色情片
Massive drop in London HIV rates may be due to internet drugs
New HIV infections in gay men have dropped by around 40 per cent at some clinics, which could be thanks to people buying PrEP drugs from abroad via websites
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Environment
Longer 鈥榩enis鈥� drives evolution of bigger brains in female fish
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Humans
Zap to the brain alters libido in unique sex study
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Technology
Sex and dentistry: I made a fellatio prosthetic for my mouth
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91色情片
See inside a condom factory and what it takes to keep sex safe
Regulars
Environment
Chimps and bonobos interbred and exchanged genes
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Humans
Science is catching up with society on transgender issues
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Humans
Brain scans show trans people feeling at odds with their body
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Humans
Men are more violent when there are more women around
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91色情片
Do women sync up? No, but we can’t resist menstruation myths
Brain Scanner is Simon Oxenham's weekly column that sifts the pseudoscience from the neuroscience
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91色情片
Semen reshapes immune system to boost chances of pregnancy
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Technology
Could sex robots and virtual reality treat paedophilia?
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91色情片
Why granny’s only robot will be a sex robot
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Life
Secret sexual liaisons explain mystery of night-singing birds
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