"I took a lot home without realizing it", the 36-year-old father of Prince George, 5; Princess Charlotte, 3; and Prince Louis, 4 months; says. "You see [so] many sad things every day that you think life is like that".
"Now is the time for a step change in how we think about mental health at work". He continued, "You're always dealing with despair and sadness and injury". "The attrition builds up and you never really have the opportunity to offload anything if you're not careful".
Among the attendees was Kirk Robinson of Mace, who hosts Mental Health At Work "toolbox talks" for the men and women on his construction sites.
The new website comes as a survey finds that 48 percent of United Kingdom employees have experienced mental health problems in their current job.
The Duke of Cambridge, on Tuesday, attended the launch of a new project called Mental Health at Work, set up by two charities namely: Heads Together - which Prince William co-founded with his wife Catherine and Prince Harry - and Mind Charity.
Farmer added on the dedication that not just Prince William, but all the Royals, have to mental health awareness: "My firm belief is that all of [the royals] and particularly the Duke - in this context - have done a lot of background work and really thought about this issue and their commitment is 100 per cent real". It has been a positive and wonderful experience.
The Mental Health at Work initiative is available online which it is hoped will benefit small to medium companies who struggle to find the help. And it goes towards removing hat stigma about mental health and to speaking up to and owning up to it'.