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🗓️ 22 May 2020
⏱️ 4 minutes
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0:00.0 | Little things, like taking a shortcut through the park on your way to work each day can make a big difference |
0:16.0 | to your mental health. Find your little big thing |
0:27.2 | big thing at every mind matters. |
0:32.1 | This is Scientific Americans' 60 Second Science. |
0:37.0 | I'm Jason Goldman. |
0:39.0 | More than 200 million die |
0:45.0 | die, and about half a million die, mostly in Africa, many of them children. |
0:48.0 | And those staggering numbers are an improvement. |
0:51.0 | Malaria deaths have been cut in half since 2000. |
0:56.2 | In many places, a remarkably simple tool has led the fight. |
1:00.3 | Bed nets, treated with a mild insecticide that stop mosquitoes from biting people in their sleep. |
1:06.0 | Both people and mosquitoes are ponds in the malaria transmission cycle. |
1:11.0 | If an infected person gets bitten by a mosquito, the parasite gets picked up along with the blood meal. |
1:17.0 | That mosquito can then transfer the parasite to the next person it bites. |
1:22.0 | Bed nets help stop mosquitoes from easy attacks on motionless |
1:25.9 | sleepers. But now some mosquitoes seem to be giving up the night shift. |
1:30.9 | Malaria mosquitoes in Africa tend to shift their Nighting |
1:34.1 | Nightinguegios in Africa tend to shift their biting behavior. |
1:36.2 | Entomologist Uno Sousa from Penn State University's Center for Infectious Disease Dynamics. |
1:42.3 | Normally they tend to buy people during the night, |
1:47.0 | but because of extensive use of a bed match, |
1:50.0 | these mosquitoes started fighting in the early evening or in the mornings. |
... |
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