Under the national curriculum, schools are advised, although not categorically required, to teach a range of topics which will help pupils towards a clearer understanding of society and their role and responsibilities within it, health issues, aspects of personal development, and philosophical and moral questions to do with ethical living. These are classed together as personal, social, and health education. But this is not to say that PSHE is necessarily taught as a discrete subject; aspects of it may be embedded in lessons for other subjects, or covered during tutorial times. There may be areas of overlap between PSHE and two areas of required provision: citizenship and sex and relationship education, as well as with religious education.
http://www.parentscentre.gov.uk/educationandlearning/whatchildrenlearn/curriculumandassessment/personalsocialandhealtheducation/ Details of the content and purpose of the PSHE curriculum.