Children are to learn about good mental health, the importance of good relationships and how to be physically healthy, the Department for Education has said.
The government said youngsters will be taught about topics such as consent, keeping safe online and LGBT+ issues.
All children will also learn about healthy lifestyle habits.
Children will also be taught how to recognise when others are struggling with mental health and how to offer help.
In a statement, the DfE said: “The guidance – which was last updated in 2000 – will become compulsory in all schools across the country from September 2020, and will put in place the building blocks needed for positive and safe relationships of all kinds.”
According to the DfE, teachers will talk to children as young as primary school age about the features of healthy friendships, family relationships and other relationships they may encounter.
And at secondary schools, teachers will build on this and, “at the appropriate time”, talk to children about intimate relationships.
Children at both levels will be learning about staying safe online, how to use technology safely and how to keep personal information private.
The new teaching guidelines have been developed in response to a “national call” for topics such as these to be covered, the DfE said.
Education Secretary Damian Hinds said: “I want to make sure that our children are able to grow up to become happy and well-rounded individuals who know how to deal with the challenges of the modern world.
“Part of this is making sure they are informed about how to keep themselves safe and healthy and have good relationships with others.
“Many of today’s problems did not exist when we last gave schools guidance on how to teach Relationships and Sex Education 18 years ago.
“The action we’re taking is important to help support teachers and schools design a curriculum that will enrich their pupils in an age appropriate way.
“Good physical and mental health is also at the heart of ensuring young people are ready for the adult world. By making health education compulsory we are giving young people the tools they need to be ready to thrive when they leave school.”
The move to include these subjects has been welcomed by campaigners, who called for personal, social and health education lessons (PHSE) to be made compulsory to tackle the rise in mental health issues.
But some have expressed disappointment that the change will not come in until 2020.
Link to full blog: https://www.standard.co.uk/news/uk/mental-health-education-to-be-made-compulsory-in-schools-a3891421.html