The working world has changed since the start of the coronavirus pandemic, with new challenges for many employees and managers. This year the focus of World Mental Health Day on October 10 is mental health in the workplace. In the US, an estimated 1 million workers miss work every day because of job stress. And it's a similar situation in many countries around the world. But there are lots of things we can do to help look after our mental health — and the mental health of our colleagues — when we're at work. Experts from Johns Hopkins Bloomberg School of Public Health have shared a few ideas, including simple things like saying "thank you" to others. They also suggest practicing good "email etiquette." This means making your emails clear with an "accurate subject line," "concise summary" of what you're asking and a "clear timeline." The mental health charity Mind says people should make sure they find time to take breaks. Many workers can take lunch breaks and perhaps other small breaks during the day and even a short time away from the desk can help you to feel a little better. According to Harvard Business Review, managers need to understand that "work is about people, and people are messy and difficult." This means understanding that employees all have their own challenges. The first thing that managers can do, says psychologist Emily Anhalt, is show that they care about mental health in the workplace. Making a difference to employees' mental health is not "a quick and easy thing," she said. It's a long journey — that might start on October 10, but it will need to last for years.