Why do we prefer doing something to doing nothing?

Why we tend to rely upon our current emotions when making quick, automatic decisions.

Why we prefer options that are known to us

Why we tend to rely heavily upon the first piece of information we receive

Why do we focus more on some things than others?

Why do we tend to think that things that happened recently are more likely to happen again?

Why do we support opinions as they become more popular?

Why do we believe our horoscopes?

Why we rely on event-specific information over statistics.

Why do we focus on trivial things?

Why we are more likely to be dissatisfied with that product than we otherwise would be.

Why are we satisfied by "good enough"?

Why we are more likely to consume our individual purchases over a bundle purchase.

Why when we read homophones, we are still primed by the other meaning of the word.

Why we're willing to pay more when no cash is involved in a transaction.

Why we perceive an option as more likely if it belongs to a large category than if it is in a small category.

Why do we have a harder time choosing when we have more options?

Why do we look for consistency in our beliefs?

Why people support their past ideas, even when presented with evidence that they're wrong?

Why we interpret information favoring our existing beliefs.

Why do we make worse decisions at the end of the day?

Why we feel the past is better compare to what the future holds

Why do we feel more strongly about one option after a third one is added?

Why we tend to view two options as more distinctive when evaluating them simultaneously then separately.

Why do we believe we are good at something when we actually aren’t?

Why we tend to mispredict behaviors based on our emotional state.

Why do we value items more if they belong to us?

Why do people think that extrinsic incentives are more motivating for others?

Why do our decisions depend on how options are presented to us?

Why do we have trouble thinking outside the box?

Why do we underestimate the influence of the situation on people’s behavior?

Why do we think a random event is more or less likely to occur if it happened several times in the past?

Why do we forget information that we just looked up?

Why do positive impressions produced in one area positively influence our opinions in another area?

Why we tend to overestimate our ability to do something considered hard and underestimate our ability to do something considered easy.

Why do we see unpredictable events as predictable after they occur?

Why do we expect previous successful performance to lead to future successful performance?

Why do we value immediate rewards more than long-term rewards?

Why are we more likely to offer help to a specific individual than a vague group?

Why do we place disproportionately high value on things we helped to create?

Why we believe we have more control over the world than we actually do

Why are we overconfident in our predictions?

Why do we think some things are related when they aren’t?

Why we are more likely to believe that something is true if it is repeated to us enough times.

Why do we treat our in-group better than we do our out-group?

Why do we work harder when we are promised a reward?

Why we believe that all morally good actions adds up to a reward and all morally bad actions add ups to a punishment

Why does spacing out the repetition of information make one more likely to remember it?

Why we tend to apply a skill/tool anywhere

Why we prefer the smaller or the lesser alternative

Why we lose certain details of our memory and why we remember some

Why do we remember information that we attach significance to better than information we repeat?

Why repetition improve memory retention

When a statistically significant observation should be overlooked.

Why do we buy insurance?

Why do we think less about some purchases than others?

Why do we prefer things that we are familiar with?

Why rewards of uncertain size tend to motivate us more than known rewards

Why we tend to prefer spreading limited resources evenly across options.

Why is the news always so depressing?

Why we tend to favor brands that show care to societal issues

How our view of a rosy past can dictate our actions now

Why do we change our behavior when we’re being watched?

Why we tend to react more strongly to harmful actions

Why do overestimate the probability of successes?

Why we avoid dangerous or negative information

Why do we lose interest in an activity after we are rewarded for it?

How do our memories differ from our experiences?

Why do some people overestimate the probability of negative events occurring

Why do we underestimate how long it will take to complete a task?

Why do we only remember the first things on our grocery list?

Why do some ideas prompt other ideas later on without our conscious awareness?

Why do we think our current preferences will remain the same in the future?

Why we often tend to devalue proposals made by people who we consider to be adversaries

Why we choose the option that minimize regret even if it's not optimal

Why do we use similarity to gauge statistical probability?

Why responses to a survey or experiment can be inaccurate due to the nature of the survey or experiment

Why we tend to overestimate our control over impulsive behaviours

Why do we only remember the positive elements of our past

Why do we focus on items or information that are more prominent and ignore those that are not?

Why do we blame external factors for our own mistakes?

Why do we better remember items at the beginning or end of a list?

Why do we follow the behavior of others?

Why we forget where are memories come from, and thereby lose our ability to distinguish the reality or likelihood of each memory.

Why do we retain information better when we learn it over a long time period?

Why do we feel like we stand out more than we really do?

Why do we tend to leave things as they are?

Why is yawning contagious?

Why do we misjudge groups by only looking at specific group members?

Why recent events are thought to be longer ago than they were, and remote events thought to be more recent

Why do we perform better when someone has high expectations of us?

Why are we likely to continue with an investment even if it would be rational to give it up?

Why do we prefer to eliminate one category of risk entirely, even if doing so increases overall risk