What makes someone happy at work? You might think it comes down to loving your coworkers or feeling fulfilled. Those things matter, but not quite as much as having a bit of control. Believe it or not, studies have shown that employees who have a bit of control over the layout and design of their personal workspace are happy, healthier, and more productive at work. One other aspect of office and work life that may impact happiness and productivity? The temperature.

According to research, employees do a better job at work when office temperatures are set at a certain range. Generally, when office temperatures are low (68 degrees fahrenheit) employees cite being unhappy at their job. They also tend to make 44% more errors and are overall less productive. When temperatures are warmer (77 degrees or above), employees generally feel happier and more productive at work. They also make fewer errors and seem to have more energy. The moral of the story? If you want happy employees who are content with their job, give them a bit of control over their workspace while keeping temperatures nice and warm. Lack of control and cooler temps make for a rather dismal job environment.