The Health Decision Premortem
Use your imagined worst-case diagnosis to make wiser health choices today
Borrowed from project management's premortem technique, this mental model asks you to vividly imagine receiving your worst-case health diagnosis, then work backwards to identify which current habits likely contributed. The mechanism is mortality salience—making the abstract consequences of daily choices viscerally real. By inhabiting that imagined future moment with emotional specificity, trivial pleasures like a sugary drink lose their appeal against the weight of a life-altering outcome. The technique also produces a secondary benefit: daily problems that felt significant before the exercise appear trivial by comparison, reducing the stress-driven behaviours that compound health risk.
- Mortality is a leveler—imagined death instantly reorders priorities.
- Abstract future consequences cannot compete with immediate pleasure until made viscerally real.
- Working backwards from a bad outcome reveals the daily decisions that created it.
- Every present-day choice is a cumulative vote for a future health state.
- Vividly imagine receiving your worst-case health diagnosisPlace yourself in the doctor's office with full sensory detail. Hear the words. Feel what it would be like to go home and tell the people closest to you. Make the scenario as specific and emotionally real as possible—vagueness dilutes the effect.Pro tipName the specific diagnosis you most fear. Specificity—'stage three cancer' rather than 'getting sick'—creates far more visceral impact and a stronger decision-making signal.WarningIf this exercise produces persistent, disproportionate anxiety rather than useful perspective, it may not be the right tool for your psychology.
- Trace backwards to the contributing habitsFrom that imagined future, look back over the previous 5–15 years of daily choices—foods, drinks, sleep, exercise, stress management—and identify which specific repeated behaviours likely contributed to the outcome.Pro tipFocus only on the habits most clearly linked to the condition you imagined, not every imperfection. Two or three key patterns are enough to work with.
- Apply the mortality-leveler question to a present choiceReturn to the present moment and ask: 'Is this specific habit—this drink, this snack, this pattern—worth the contribution it makes toward that future?' Allow the answer generated from the imagined diagnosis moment to inform your decision right now.Pro tipThis works in real time during moments of temptation. A 10-second mental visit to the imagined diagnosis can be enough to shift the decision.WarningThe goal is a single, useful perspective shift—not guilt, not obsessive rumination. One brief mental visit is sufficient.
- Use the leveling effect to reframe current stressorsNotice that problems which felt significant before the premortem—work stress, traffic, minor setbacks—appear trivial against an imagined serious diagnosis. Use this reframe to reduce the stress-driven eating or drinking that compounds health risk over time.Pro tipBartlett notes this is also a general problem-solving strategy: mortality salience rapidly reveals which of your current problems actually matter.
During a discussion about diet and cancer statistics, the host described imagining receiving a cancer diagnosis and being told by a doctor that his lifestyle choices over the previous decade had contributed to it. He then asked himself: 'In that moment, is there any sugary drink that is worth it?' The answer was immediate and unambiguous. He uses this imagined future moment as a real-time filter for present-day consumption decisions.
Shared by podcast host Stephen Bartlett on The Diary Of A CEO during a conversation with Dr. David Unwin about the link between dietary choices and cancer outcomes.