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10:46 - Source: CNN
CNN  — 

For everyone who hates setting their alarm an hour earlier to hit the gym, scientists may have some good news.

Afternoon workouts lead to better outcomes for some people, according to a study published this year. The study, which looked at men who are at risk for or diagnosed with Type 2 diabetes, found that participants who exercised in the afternoon experienced more metabolic benefits as well as more positive effects on their exercise performance and fat mass compared to participants who exercised in the morning.

Researchers say they don’t know exactly why afternoon training can lead to better results – it’s likely due to a combination of factors and more research is needed – but they can speculate based on what is known about human physiology and biological timing.

“Our body has a biological clock, and this regulates many processes in the body and these processes have a rhythm,” said study author Patrick Schrauwen, a professor of Metabolic aspects of Type 2 Diabetes at Maastricht University in the Netherlands.

“Some of these are well known, like your body temperature and your blood pressure,” Schrauwen said. Our biological clocks also impact our metabolism and whether our bodies burn fat or carbohydrates at certain times, he added. And for study participants who were obese or at risk for Type 2 diabetes, those fat-burning processes were more optimal in the afternoon hours.

Food intake also likely plays a role, said Shawn Arent, professor and chair of the exercise science department at the University of South Carolina. He was not affiliated with the study. “You’ve had more waking hours in the day, you’re more awake, you’ve had a chance to fuel the system a little bit more,” Arent said.

For many people, the quality of exercise and the quality of overall nutrition make more of a difference than the timing of exercise, according to researchers.

Higher body temperatures in the afternoon may also help muscular performance, almost like a built-in daily warm-up.

“When you start to realize how strong this biological clock can be, and then if you do the things like food intake on the wrong time of the day, or being inactive on the wrong time of the day, or