Body and Mind

Emotions and Behavior

Feelings, memory, habits and how psychologists study them.

How Children Develop

A broad overview of how children's thinking, language and social skills typically grow from infancy to adolescence, and why every child follows their own path.

4 min read

How Habits Form and Why They Stick

Learn how the cue, routine and reward loop is used to explain habits, what research suggests about how long they take to form, and why they can be hard to change.

4 min read

How Memory Works

How the brain encodes, stores and retrieves memories, the different types of memory, and why even confident recollections can be incomplete or wrong.

4 min read

How Psychologists Describe Personality

An introduction to trait models of personality, especially the Big Five, with a balanced look at what they capture and where psychologists criticize them.

4 min read

How Stress Affects the Body

An educational overview of the fight or flight response, the hormones involved, and the general ways short-term and long-term stress can affect the body.

4 min read

The Psychology of Motivation

A survey of major theories of motivation, from drives and Maslow's hierarchy to self-determination theory, with notes on what each explains and where it falls short.

4 min read

What Is Cognitive Bias?

What cognitive biases are, why the mind relies on mental shortcuts, and how common examples like confirmation bias and anchoring can lead thinking astray.

4 min read

What Is Intelligence and Can It Be Measured?

How psychologists define intelligence, what IQ tests do and do not capture, and the long-running debates over general ability, multiple intelligences and fairness.

4 min read

Why Is Laughter Contagious?

Why hearing someone laugh makes us want to join in: the social purpose of laughter, brain responses involved, animal laughter and what remains unknown.

4 min read

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