This week, American actress Gwyneth Paltrow announced she is 'type one' on the Enneagram scale - a 'Reformer' - crediting the test with helping her to kick her cigarette habit.
As a Ph.D. student, I wanted to understand the evolution of individual differences in fruit fly behavior—the building blocks ...
Personality is not fixed. It’s a living mix of biology, experience, and choice, constantly reshaped as we grow.