Why People Prefer More Pain

Replicating a psychological experiment by Daniel Kahneman and Barbara Fredrickson from 1993 investigating pain perception between dominant and non-dominant hands.

• Participants submerge their hand in 14 degrees Celsius water • They rate discomfort in real-time on a provided scale • Physical sensations include numbing, tingling, and muscle cramp-like feelings

One trial lasts 60 seconds at 14 degrees Celsius, while the other lasts 90 seconds with a temperature increase to 15 degrees Celsius in the final 30 seconds.

Seven out of 12 participants chose to repeat the longer, more painful trial, despite rating it as worse in real-time.

• The experiencing self lives through the moment and prefers pain to stop immediately • The remembering self evaluates experiences retrospectively with less concern for duration • These two perspectives often conflict in how we judge experiences

The length of an experience has little effect on retrospective evaluation. A 2008 study found vacation length did not impact how positively it was remembered.

Memory creates photographs rather than films, capturing the most intense and salient moments rather than the full experience duration.

A bad ending, like the final season of Game of Thrones, can taint memory of an entire series regardless of its quality.

A mental shortcut where we judge probability based on how much something matches our preconceived mental model, coined by Kahneman and Tversky in the 1970s.

• Most people believe Linda is more likely a feminist bank teller than just a bank teller • Mathematically, bank teller is the only logical answer since feminist bank teller is a subset • Our mental model of Linda as a feminist activist overrides probability logic

We assign higher probability to descriptions that match our mental models even when mathematically impossible. Examples include thinking boy-boy-boy-girl-girl-girl is less likely than random sequences.

Representativeness explains why peak moments in our past come to represent entire experiences.

Our overall experience of an event is determined primarily by two factors: the most intense moment (peak) and how it ends (end).

• The brain better recalls and assigns greater importance to more recent events • How an experience ends plays an outsized role in how it's remembered • The ending can significantly influence perception of the entire event

Researchers found that adding five mildly pleasant years to a very positive life actually decreased the perceived quality of that life, showing the power of endings.

In the cold water experiment, the longer trial had a better ending (warmer water), making people prefer it despite enduring more total discomfort.

In a 2003 trial with 682 patients, half received a normal procedure while half had an extra three minutes at the end where the colonoscope was left in but not moved, causing minimal discomfort.

• Patients with the extended ending rated the whole experience as 10% less unpleasant • They were significantly more likely to return for follow-up screening procedures

By improving memory of medical procedures, patients are more likely to complete necessary health screenings, improving long-term health outcomes.

Should physicians be allowed to intentionally add a period of diminishing pain to improve patient memory if it increases compliance?

• IKEA offers cheap hot dogs at the exit to create a positive ending • Doctors give lollipops to children after checkups to improve memory of the visit

Instead of ending with painful hill sprints, end with a pleasant cool-down walk while listening to music or talking with a friend.

Making vacations longer matters less than creating exciting, novel experiences with high-peak moments and ending with something pleasant.

When leaving a job, being extra nice to colleagues during final weeks creates better lasting memories and fond farewells.

Mindset plays a huge role in perception of the environment, making some experiences seem more enjoyable while causing others to appear worse than they really are.

You can train your mind like a muscle through practices such as meditation and mindfulness to make meaningful improvements to daily life.

• Studies show meditation reduces irritability and stress while increasing focus and happiness • There is no single definitive way to meditate; practices vary from guided meditation to ASMR podcasts to focus music

Understanding how the brain creates memories allows us to intentionally optimize our experiences for better peak moments and positive endings.