Wondering if it's true? Here's an excerpt from an article in Yahoo Finance....
People with a brighter outlook on life are typically more satisfied with their jobs, perform better on assigned tasks and are more likely to help others. As a result, content employees tend to collaborate well in team environments and gain social support from their co-workers. Employees with a positive disposition are also less likely to miss work and typically cope more effectively with challenges, all of which promote career advancement.
"When we are happy, we are better able to focus, concentrate and have greater motivation to tackle challenging tasks," says Kristina Hallett, clinical psychologist and executive coach based in Suffield, Connecticut. Not only does a positive attitude create a better work environment, it also increases productivity in both quality and quantity of work and can increase your chance for getting a raise or a promotion and a better evaluation from your supervisor, she adds.
Here's the rest of the article - https://finance.yahoo.com/news/7-ways-boosting-happiness-improve-151949447.html
What are YOU doing to increase your happiness (and your income) today?