tracking your diet and working out
 

If someone wants to lose weight, they should be aware of everything that they eat and drink each day. The most effective way to do this is to log every item that they consume, in either a journal or an online food tracker.
Researchers estimated in 2017 that there would be 3.7 billion health app downloads by the end of the year. Of these, apps for diet, physical activity, and weight loss were among the most popular. This is not without reason, as tracking physical activity and weight loss progress on-the-go can be an effective way of managing weight.
One study found that consistent tracking of physical activity helped with weight loss. Meanwhile, a review study found a positive correlation between weight loss and the frequency of monitoring food intake and exercise. Even a device as simple as a pedometer can be a useful weight-loss tool.