Genetic factors account for much of the variation in personality traits across the lifespan. Shared upbringing plays a smaller role in adult personality than many clinical models assume.

What’s so interesting about talking robots? From The Tin Man and C3P0 to HAL 9000, humans have long fantasized about bringing their lovable idiosyncrasies to metal and silicon. Now, as intelligent ...

An individual’s genetics and their environment both shape their personality. However, opinions differ on the degree to which each of these factors influences personality, and how they contribute to ...

People love taking personality tests, but are personality types real? Maybe, and maybe not. Personality development is complicated, and most healthy personality types are not so easily defined. Your ...

Some people believe personality is fixed, but more recent research suggests that personality may develop over time and that people’s personality traits can change. Personality types group people into ...

Based on genetic studies, scientists estimate that 30% to 60% of your personality is inheritable. Research also suggests that significant personality changes tend to occur between ages 20 to 40. Were ...

Most people think of personality traits as set in stone. We consider them to be as fixed as our eye color. For example, you might tell yourself, “I’m just a perfectionist,” or “I’m the type of person ...

Are you a responsible oldest child, an overlooked middle, or a free-wheeling baby? For those who adhere to the theory that birth order influences personality, the answer to that question may hold the ...