The most common mental health problems are depression, anxiety and stress. Depression affects around 1 in 5 people and anxiety about 1 in 10.
More long-term conditions such as schizophrenia and bi-polar affective disorder (manic depression) are also fairly common. Roughly 1 in 100 people will experience one of these conditions.
Substance misuse is another common problem, with 1 in 3 people being addicted to a substance at any one time.
Amongst older people, the most common mental health problem is dementia. It affects around 1 in 20 people over the age of 65, and 1 in 5 people who are over 80. The most common form of dementia is Alzheimer's disease, affecting around 500,000 people in the UK.
Follow the links ont the left for more information on these common problems.
