We show that limited attention and present bias contribute to low levels of exercise. First, in a large randomized … experiment, we find that email reminders increase gym visits by 13 % and that they benefit nearly all types of individuals …. Limited attention can explain these effects. Second, using a novel dataset, we find that many bookings for gym classes are …

structure, and they receive reminders each semester. This easily implementable, low-cost intervention is highly effective: it …

effects of the policy. While there is scope for long-term behavior change, nudging might not be the right approach. …