Lifespan Cognitive Health Risk score

Lifespan Cognitive Health Risk score is associated with IQ decline in humans.

“Within identical twin pairs raised together, the twin with a higher LCHR score had a greater decline in IQ between childhood and midlife.”

Humanswithin identical twin pairs raised together

Quantifying Lifespan Cognitive Health Risk: Findings from a longitudinal twin study

AAIC 2025 abstract·23 Dec 2025