The new year starts for many by making resolutions to live healthier lives. This can mean getting fitter by joining a gym, signing up to Pilates classes or starting a new diet.

For many, these resolutions are hard to maintain and the new habits slip away. Unfortunately, there are many reasons why our best intentions fail; the kids get sick so you can’t get out for a class, the costs of equipment or membership become too steep, and kale just isn’t cutting it for dinner anymore. In the end, motivation for our new habits runs out.

Read more: The science behind building healthy habits can help you keep your New Year's resolution

When we choose activities for our leisure that do not bring intrinsic enjoyment and/or satisfaction, we find it hard to preserve. External motivations, like gaining a reward (a particular body shape) or avoiding a consequence (minimizing the risks related to heart health), can only take us so far.

When we do things that we truly love, that are aligned with our values and/or sense of self, or we would do even if no one was watching, then the chances of maintaining those physical activities are much higher. That means the goal of resolution-setting is to find the things........

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