Many people will experience mental health problems in their lives. Around one in six adults in England have a common mental health disorder, and around half of mental health problems start by the age of 14. The proportion of young people estimated to have a probable mental disorder rose between 2017 and 2022, following the COVID-19 pandemic: for example, among 17- to 19-year-olds, the proportion went up from 10% to 26%.