If you want to see their habits in order to get in shape, perhaps a good way to start is to change your mode of transport, since the active transport has recently been associated with less weight and body fat.
A study published in the journal BMJ evaluated weight, body mass index and percentage of body fat in men and women in the UK, ensuring that those who used their own vehicle to move had more weight and body fat of those who used public transportation , walking or cycling to work.
Specifically, who used a means of transport that required more movement, were between 2 and 3 kilograms less than those who drove to work, and also had a lower percentage of body fat.
Although weight differences may be small, the reality is that private transport or travel by car to work considerably reduces the activity.
And, while the body weight and lower fat have been associated with active transport method, can not be considered as having a causal relationship.
However, this study supports the theory that even a small change, like choosing public transport, walk or cycle to move, can affect our health.
That is, if you're trying to get fit, a good start would start to use an active transport as it says in the study, has been associated with less weight and body fat in men and women.