Drinking beer increases human attractiveness to malaria-carrying mosquitoes, according to researchers who say their findings need to be integrated within public health policies.
Drinking beer increases human attractiveness to Malaria carrying mosquitoes, according to researchers who say their findings need to be integrated within public health policies. "Our aim was to ascertain the effect of beer consumption on human attractiveness to malaria mosquitoes in semi field conditions in Burkina Faso. We used a Y tube-olfactometer designed to take advantage of the whole body odour (breath and skin emanations) as a stimulus to gauge human attractiveness to Anopheles gambiae (the primary African malaria vector) before and after volunteers consumed either beer (n = 25 volunteers and a total of 2500 mosquitoes tested) or water (n = 18 volunteers and a total of 1800 mosquitoes). Water consumption had no effect on human attractiveness to An. gambiae mosquitoes, but beer consumption increased volunteer attractiveness. Body odours of volunteers who consumed beer increased mosquito activation (proportion of mosquitoes engaging in take-off and up-wind flight) and orientation (proportion of mosquitoes flying towards volunteers’ odours). The level of exhaled carbon dioxide and body temperature had no effect on human attractiveness to mosquitoes. Despite individual volunteer variation, beer consumption consistently increased attractiveness to mosquitoes. These results suggest that beer consumption is a risk factor for malaria and needs to be integrated into public health policies for the design of control measures."
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Thinking your life is worthwhile is correlated with a variety of positive outcomes.
- A new study finds that adults who feel their lives are meaningful have better health and life outcomes.
- Adults who felt their lives were worthwhile tended to be more social and had healthier habits.
- The findings could be used to help improve the health of older adults.
Even when they suffer costs in doing so.
- It's commonly thought that the suppression of female sexuality is perpetuated by either men or women.
- In a new study, researchers used economics games to observe how both genders treat sexually-available women.
- The results suggests that both sexes punish female promiscuity, though for different reasons and different levels of intensity.
Jeff Bezos, the founder of Amazon.com, explains his plan for success.
- Jeff Bezos had a clear vision for Amazon.com from the start.
- He was inspired by a statistic he learned while working at a hedge fund: In the '90s, web usage was growing at 2,300% a year.
- Bezos explains why books, in particular, make for a perfect item to sell on the internet.
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