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Some of scientists’ most rewarding moments come when we confront a hard problem or a difficult task. Solving a major methodological hurdle, designing an elegant experiment, making sense of a puzzling result, working on a new model or writing a paper or grant proposal are the intellectual challenges that make a career in science so exciting. But doing hard tasks is, in fact, hard. It can frustrate and weigh on us, and cause anxiety and stress. We can struggle to maintain focus on our hard tasks, including the ones we enjoy and eagerly wish to complete. We often postpone work on hard tasks, such as beginning to write a paper or do complex data analysis, in favour of quick wins from easier tasks, like fine-tuning a figure, organizing our calendars or making a dent in our e-mail correspondence.