One in four adults will struggle with a mental health issue during their lifetime. At work, those suffering — from clinical conditions or more minor ones — often hide it for fear that they may face discrimination from rivals or even bosses. 

Managers are likely to see employees struggle with anxiety, depression, burnout, trauma, and post-traumatic stress disorder (PTSD).

It might be hard to see the signs

If a relative, friend or someone else you know has a mental health issue, they may tell you. But if they don't, any of these signs could suggest something's wrong: