Depression was identified as the third leading cause of mental illnesses and disability among adolescents globally, while suicide is the second leading cause of death among 15-29-year-olds.
Writing for The Guardian, Gaga - real name Stefani Germanotta - and Ghebreyesus explained that 800,000 people take their own lives each year. Stigma, fear and lack of understanding compound the suffering of those affected and prevent the bold action that is so desperately needed and so long overdue'.
'It's these people who need to be at the heart of what we do and I welcome this opportunity to work closely with them, as well as experts, to oversee a cross-Government suicide prevention plan, making their sure their views are always heard'.
Like most low and middle income countries, Zimbabwe puts people with mental health problems in hospitals, rather than treating them in the community, says Professor Dixon Chibanda of the University of Zimbabwe - one of the country's handful of trained psychiatrists.
'How India Perceives Mental Health, ' a report published by The Live Love Laugh Foundation (TLLLF) in March 2018 to measure the public perception of mental health across eight Indian cities revealed that 87% of respondents associated mental illness with severe disorders (like schizophrenia and Obsessive Compulsive Disorder) and their symptoms.
"The Department of Health spends less than 1% of the entire health budget on mental health".
The Bad Romance singer previously took a career break to look after her mental health, telling The Mirror: 'I take medication.
'I openly admit to having battled depression and anxiety and I think a lot of people do. "And despite how educated we are, there's pretty good evidence it's getting worse".