Bipolar disorder (formerly known as manic depression) is a mood disorder. Symptoms are extreme mood swings from high to low.
Bipolar is the fourth most-common mental health problem worldwide after depression, anxiety and schizophrenia.1
In 2013, there were almost 4 million cases of mood disorders, including bipolar disorder, in the UK.2
In 2014, younger people were more likely to have bipolar than older people - 3.4% of 16-24 year olds screened positive but only 0.4% of 65-74 year olds screened positive.3
Bipolar disorder: A-Z Topics
1 Vos, T., Barber, RM., Bell, B., Bertozzi-Villa, A., Biruyukov, S., Bollinger, I., ...Murray, CJ.. (2013). Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990-2013: A systematic analysis for the Global Burden of Disease study. The Lancet, 386(9995), 743-800.
2 Fineberg, N., Haddad, P., Carpenter, L., Gannon, B., Sharpe, R., Young, A., ... & Sahakian, B. (2013). The size, burden and cost of disorders of the brain in the UK. Journal of Psychopharmacology, 27(9), 761-770.
3 Marwaha, S., Sal, N., & Bebbington, P. (2016). Chapter 9: Bipolar disorder. In S. McManus, P. Bebbington, R., Jenkins, & T. Brugha (Eds.), Mental health and wellbeing in England: Adult Psychiatric Morbidity Survey 2014. Leeds: NHS Digital.