63
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65
Sons accelerate maternal aging in bighorn sheep. For a given number of offspring, females that weaned more sons than daughters when aged between 2 and 7 years experienced faster reproductive aging. Offspring sex ratio may help explain among-individual variation in senescence rates in humans.
(pnas.org)
0
1
2
5
6
7
4
5
6
83
84
85
16
17
18
2
3
4
2
3
4
6
7
8
0
1
2
58
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60
34
35
36
4
5
6
31
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33
TIL a study found that 966 listeners from 23 countries could reliably distinguish laughter between friends vs strangers from snippets of laughter from various pairs of Americans. Female friendship laughter was identified at higher rates (85% accuracy) than male or mixed sex friendship laughter.
(pnas.org)
14
15
16
36
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38
13
14
15
24
25
26
Largest study of moral preferences in sacrificial dilemmas (trolley problems) shows a universal qualitative ordering of sacrifice acceptability, but at country-level the fluidity with which people can develop new relationships is strongly associated with rejection of sacrifices for the greater good.
(pnas.org)
0
1
2
41
42
43
1
2
3
3
4
5
14
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16
23
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25
3
4
5
16
17
18
Scientists used artificial intelligence to a multiparametric brain PET imaging dataset acquired in a cohort of 20 to 82-year-old ,cognitively normal adults (N=205) to define their metabolic brain age. In terms of brain metabolism, the adult female brain is on average 3 years younger than male brain.
(pnas.org)
3
4
5
0
1
2
Scientists used artificial intelligence to a multiparametric brain PET imaging dataset acquired in a cohort of 20 to 82-year-old ,cognitively normal adults (N=205) to define their metabolic brain age. In terms of brain metabolism, the adult female brain is on average 3 years younger than male brain.
(pnas.org)
0
1
2
Scientists used artificial intelligence to a multiparametric brain PET imaging dataset acquired in a cohort of 20 to 82-year-old ,cognitively normal adults (N=205) to define their metabolic brain age. In terms of brain metabolism, the adult female brain is on average 3 years younger than male brain.
(pnas.org)
37
38
39
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