#twin-studies

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#genetics #heritability #longevity #religiosity #parental-influence #lifespan #extrinsic-vs-intrinsic-mortality
Psychology
fromPsychology Today
2 months ago

Twin Studies and the Role of Genetics in Religious Belief

Parental upbringing shapes childhood religious participation, while genetic factors influence adult religious interest and involvement; identical twins can show strong similarity even when reared apart.
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Science
fromwww.scientificamerican.com
2 months ago

How long you live may depend much more on your genes than scientists thought

Heritability of human lifespan roughly doubles to about 50% when extrinsic mortality is removed, showing a stronger genetic influence on intrinsic aging.
fromPsychology Today
6 months ago

Is This the Study That Rewrites IQ Theory?

Now, new research from Horvath and Fabricant challenges that assumption, and it does so with the kind of study design psychologists dream of: examining identical twins reared apart. Their findings suggest that education, of all things, may hold surprising power to raise measured intelligence. For educators, this study could be a validation of an instinct we've tapped on for years. For the rest, it offers hope that misreadings of prior research had closed off.
Science
Science
fromPsychology Today
6 months ago

Are Some Destined to Be Smart?

Intelligence is substantially heritable and stable, yet environmental factors account for roughly 25–30% of variation, allowing meaningful change.
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