Your Personality May Be Written Into Your DNA More Than We Realized, New Study Finds

Recent scientific research indicates that personality is more genetic than previously understood, identifying over 1,200 genetic variants linked to the Big Five traits. These variants also correlate with health, longevity, income, and habits, though environment remains influential. Separately, new evidence suggests the gut microbiome is more contagious than once thought, with bacterial populations spreading rapidly across continents. This research also uncovered bacterial groups associated with type 2 diabetes, colorectal cancer, inflammatory bowel disease, and aging.