Finding time to go to the gym can be tough when your schedule is already jam packed. But a new study brings good news for those who are pressed for time. In just three 15-minute sessions a week, you can see health benefits.

Previous research had claimed that you’ll need to work out for at least 45 minutes to make noticeable changes to your body. This new study may seem freeing to those people who felt that 45 minutes was too much of a commitment, even if it was only three times a week.

Participants in the study performed a designated 15-minute, three times per week resistance training workout with their results monitored by researchers. After only two weeks, they began to show results. The study found that these short duration resistance training sessions improved insulin sensitivity and muscle thickness. The sessions appeared to reduce the body’s insulin resistance, which is the condition that makes it difficult to break down blood sugar levels.

The study focused on overweight men who participated for six weeks. Although the participants’ bodies weren’t completely transformed in that time, the improvements show how even a small amount of exercise can make a positive difference.