December 14, 2015

Killing mosquitoes using human foot odour traps

Filed under: Science,Weird by Orangemaster @ 11:37 am

In 2006 Dutch scientist Bart Knols observed that malaria-carrying mosquitoes are attracted to smelly human feet, convincing fellow scientist Renate Smallegange’s to follow in his smelly footsteps devising mosquito traps using human foot odour. Knols figured out that when standing up, mosquitoes would go for people’s feet, prompting Smallegange to zoom in on this discovery. At Wageningen University she collects people’s smelly socks to carry out research on trapping mosquitoes who transmit malaria through their bite, affecting millions of people every year.

According to this radio interview, carbon dioxide is what first attracts mosquitoes to people, however since 2006, we also know that smelly feet do that as well. She explains that clean socks are not attractive at all to mosquitoes, smelly socks are very attractive, but when you add carbon dioxide, you could trap roughly 45 to 75% of all malaria-carrying mosquitoes. And the sock only needs to be worn for a day!

No, foot odour doesn’t work on ‘regular’ mosquitoes, and yes, the idea is to design traps with a specific built-in odour, not some African villager’s dirty socks or shipping socks over to Africa.

(Link:, Image by A.E. Goeldi, in the public domain)

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June 30, 2013

Dutch woman suffers from ‘foot orgasms’

Filed under: Health by Branko Collin @ 6:21 pm

International Business Times writes about an anonymous 55-year-old woman who experienced spontaneous orgasms that started in her left foot:

The woman, known in the study as Mrs A., said the sensations started after she received treatment on her foot a year and a half ago from a sepsis infection. Doctors said her foot may have experienced ‘partial nerve regeneration’ whereby the brain may misinterpret foot stimulation as originating from the vagina, according to the study’s results.

Doctors said the woman’s MRI scans showed no foot abnormalities, but another test showed differences between the nerves of her right and left foot.

One Dr Waldinger of Utrecht University has been treating the problem with an anaesthetic. The woman has been foot-orgasm-free for eight months.

(Photo of a Fernando Botero statue in The Hague by Photocapy, some rights reserved)

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