Burnout: Slow and steady really does win the race. This is especially true when it comes to resolutions. The common approach is to go at it hard for the first few weeks because the mentality is to get it done now—and that isn’t sustainable.
Focusing on the wrong things: Sure you want to lose weight, but do you really know how to go about it? It’s easy to give up when the tasks seem hard or are confusing.
It isn’t fun: Exercise is hard work, and if you have done very little or none of it in the past few years, you might find it is too difficult to maintain.
Failure to act: Most resolutions are sunk by too much thinking and not enough doing. Even the best advice fails if it isn’t followed.
No way to track progress: The number on the scale isn’t the only measure of your health. Important vitals such as heart rate, blood pressure, flexibility, range of motion, and other measurements are what give you a true indication of how you’re doing.