Both left-handedness and breast cancer are affected by sex hormones, and some studies suggested a link. Others, however, did not. A meta-analysis weighed the evidence.

Meta-analysis is an objective examination of published data from many studies of the same research topic identified through a literature search. Through the use of rigorous statistical methods, it can ...

A massive meta-analysis of over 227,000 people reveals that finger length ratios — shaped by prenatal hormones — correlate ...

Objective To conduct a meta-analytic review of psychosocial predictors of doping intention, doping use and inadvertent doping in sport and exercise settings. Design Systematic review and meta-analysis ...

March 9, 2026 expert reaction to systematic review and meta-analysis on associations between digital media use and child health and development . A systematic review and meta-anal ...