It may not surprise you to know that your mood can affect your productivity. However, it may surprise you to know the extent. Studies show that negative moods are associated with reduced cognitive performance and lower cognitive flexibility. This means that when you’re feeling depressed or anxious, your creativity and productivity will suffer. Never fear, there are ways to try and combat this issue. Smile. What? Is that it? Research shows that if you smile, either naturally or if you force yourself, your mood will improve! When you’re already feeling good, work! That’s the best time to be productive, but if you’re switching frequently from a good mood to a negative one, stop and take a break

Mood affects your productivity more than you realize, but a new app is helping employees take control of their emotions at work.
Source: Unraveling The Surprising Relationship Between Mood And Productivity