Britain has world’s third highest proportion of sexually active teens

UK also ranks badly among high-income nations for harmful teenage drinking, according to study in Lancet medical journal

Sexual health services hit by cuts

Projects for vulnerable, hard-to-reach teenagers and those at risk of being sexually exploited affected as cuts start to take hold

Students: what’s in your fridge?

You think you have no time to cook. But eating well in the run-up to exams could boost your grades

Nothing is more important than teaching compassion

Teaching schoolchildren happiness, empathy, altruism and compassion has proven beneficial results for classroom learning as a whole, says Vinciane Rycroft

Who helps students with mental health problems?

University counselling services are the first port of call for students in the grip of anxiety or depression – but will they survive funding cuts?

Why have student drug users become so reckless?

Recreational drugs have mutated from mood-enhancing to bladder-destroying. And no one seems to care

How to teach… World Health Day

The Guardian Teacher Network this week has resources for pupils on healthy lifestyles, including the effects – both good and bad – of Olympics 2012

How I’m learning to love my new knee

After nearly 30 years of knee problems, John Crace decided it was time to have a replacement fitted. But the recovery posed psychological as well as physical challenges

Revealed: what children are being told about abortion

The Guardian obtains details of anti-abortion campaign talk claiming abortions are linked to a raised risk of breast cancer

Louise lit up our lives. Let her tragic death be a beacon of hope on drugs

A year ago, 21-year-old Louise Cattell drowned in her bath after taking ketamine. Her mother, Vicky Unwin, says action is needed to stop other deaths