The set point theory of happiness posits that a person's baseline level of happiness is influenced by their genetics (genetic set point), life circumstances, and intentional activities. While life circumstances and intentional activities can impact happiness in the short term, individuals tend to return to their baseline level of happiness over time, as determined by their genetic set point.

Eudaimonic happiness refers to the long-lasting form of happiness associated with a deep sense of meaning and fulfillment in life. It focuses on self-realization and personal growth.

Hedonic happiness is the type of happiness derived from sensory pleasures, such as enjoying good food, music, or a warm bath. It focuses on maximizing pleasure and minimizing pain.

Gratitude journaling is a positive psychology intervention that aims to enhance happiness by encouraging individuals to focus on their strengths and virtues. It involves regularly writing down things for which one is grateful.

Negativity bias is the cognitive bias in which people tend to overestimate the impact of negative events on their happiness while underestimating the impact of positive events. This bias can lead to a tendency to focus on and remember negative experiences more vividly.

Dopamine is a neurotransmitter closely associated with feelings of happiness and pleasure. It plays a significant role in the brain's reward system and is released during activities that bring enjoyment and satisfaction.

Happiness is typically defined as a state of well-being and contentment, characterized by positive emotions, life satisfaction, and a sense of fulfillment. It involves a combination of factors, including positive relationships, a sense of purpose, and personal growth. True happiness goes beyond the mere absence of stress or the pursuit of wealth.

Hygge is a Danish cultural philosophy that emphasizes social support, community, and work-life balance as key components of happiness. It promotes a cozy, comfortable, and contented way of living.

Social comparison is the phenomenon in which people compare their own life, possessions, or circumstances to those of others. This can lead to either positive or negative emotions, depending on the direction of the comparison. Comparing unfavorably can result in feelings of unhappiness or inadequacy.

Flow is a psychological state associated with happiness, characterized by being fully absorbed and focused on a challenging activity. During flow, individuals often lose track of time and self-awareness, experiencing a deep sense of satisfaction and fulfillment.