Can a girl who is a little fat measure her heartbeat with a heart rate belt? Are you sure?
If you are a fat girl, you can completely test your heartbeat, because you can't judge your heartbeat by being fat or thin, but you need to do some exercise, so that you can fully lose excess body fat. In this case, your body index will reach the normal level of ordinary people, so I suggest you eat less meat, eat more vegetables and exercise more, which will be more perfect.