The if-then plan

In 1999, psychologist Peter Gollwitzer published an idea that changed how we understand goals: it's not enough to set an intention ("I'm going to exercise"), what actually moves the needle is deciding in advance when and where you'll do it, in the form of "if X happens, then I'll do Y". He called it implementation intentions.

A 2006 meta-analysis by Gollwitzer and Paschal Sheeran, drawing on data from 94 studies, found that people who framed their goal this way were far more likely to follow through than those who only set the goal in general terms. The reason: by deciding the trigger in advance ("if it's 8pm, then I put on my trainers"), you hand the in-the-moment decision over to an automatic pattern, instead of leaving it to that instant's willpower — which is usually busy with something else.

It works because it links a specific situation to a specific action, like a conditional rule in a program: you don't need to "remember" to exercise in the abstract, you just need the condition to show up for the action to fire on its own.

Next time you want to change something, don't stop at "I'll try": write your own if-then.

Pick a goal you've been putting off and fill in the blanks: "If [specific situation], then [specific action]". Write it somewhere you'll see it.