Sleep is when our body naturally restores itself, and shift workers are often sleep deprived. This is one factor that can increase the risk for overweight and obesity. Men who do not get enough sleep, or good quality sleep, often have lower testosterone levels, which can contribute to difficulty building muscle and a propensity for higher body fat percentage. Additionally, poor sleep is associated with decreased mood and increased risk for depression, anxiety, and heightened stress levels. The good news is that many people are successful in losing weight and maintaining a healthy weight despite shift work, but it does take intentional effort and a good plan.