Those who exercise early in the day have better success with weight loss because it helps control appetite throughout the course of the day.
People who exercise also tend to increase caloric intake to compensate for the additional energy expenditure.
Unfortunately, the body has a use-it-or-lose it policy. If you spend hours sitting at work each day, your hip flexors, hamstrings, and even the joints themselves will stiffen, potentially leading to back or knee pain, and trouble walking. If you don’t ever squat down on your haunches, your body will gradually lose the ability to do so. And too much typing or other computer use can impact your entire upper body.
I have always believed that exercise is the key not only to physical health but to peace of mind.