At Oxford's John Radcliffe Hospital, mum Adele has just heard the devastating news from brain surgeon Jay Jayamohan that her three-year-old daughter Cerys has a malignant brain cancer. This film follows Cerys's battle and shows other patients who are battling similar odds.

The brain is the most complex and mysterious organ in the body and the neurosurgeons of Oxford's John Radcliffe Hospital like Jay Jayamohan deal with brains which go badly wrong.

The parents of two year old Raj face an unimaginable dilemma. Ray has a brain tumour which, untreated, will kill him within months. Doctors at Oxford's John Radcliffe Hospital can operate but the surgery carries a high risk of paralysis.

The experts examine how scientists are fighting for our survival by battling the world's big killer diseases.

An investigation into the health epidemic that afflicts almost one in ten people in Birmingham and can lead to heart failure, blindness, kidney disease and leg amputations.

GPs are among the most trusted and respected of all professions. They are our first port of call for most NHS treatment with 800,000 people visiting surgeries every day. But Dispatches reveals that failing doctors routinely slip through the system.

As patient numbers and pressures increase, Dispatches investigates the reality of work for nurses around the country and examines whether patient care is being compromised in NHS hospitals.

Dispatches reveals what life is like for elderly men and women forced to live on today's state pension and deal with the complexities of the government's means-tested benefits to keep body and soul together.

In this edition of Dispatches, reporter Jane Moore reveals how nutritious the nation\'s breakfasts really are and the marketing techniques employed by this lucrative industry.

In a purpose-built dissection lab, Dr George McGavin is joined by leading anatomy experts to dissect a real foot, taking it apart layer by layer to reveal what makes it unique in the animal kingdom.

In a purpose-built dissection lab, Dr George McGavin is joined by leading anatomy experts to dissect a real hand, taking it apart layer by layer to reveal what makes it unique in the animal kingdom.

In the Bone Marrow Transplant Unit at Great Ormond Street Hospital, doctors strive to save the lives of children with life-threatening congenital diseases. They must attempt treatments which have very uncertain chances of success and can even threaten the lives of the children they are trying to save.

Great Ormond Street Hospital is the last chance for children in the UK whose lungs are failing because of cystic fibrosis and other conditions. In a few very severe cases each year, their only hope of survival is to undergo a radical and risky step - a double lung transplant.

Great Ormond Street is Britain's leading hospital for treating children with serious diseases of the brain - from tumours to epilepsy to rare neurovascular conditions. To save lives, doctors have no option but to undertake treatments which carry grave risks - children may be left with a mental impairment or may not even survive.

What's really going on inside your stomach? In this documentary, Michael Mosley offers up his own guts to find out. Spending the day as an exhibit at the Science Museum in London, he swallows a tiny camera and uses the latest in imaging technology to get a unique view of his innards digesting his food. He discovers pools of concentrated acid and metres of writhing tubing which is home to its own ecosystem.

The heart is the most symbolic organ of the human body. Throughout history it has been seen as the site of our emotions, the very centre of our being. But modern medicine has come to see the heart as just a pump; a brilliant pump, but nothing more. And we see ourselves as ruled by our heads and not our hearts.

Child psychologist Laverne Antrobus delves into the Horizon archive to find out how science has shaped our approach to parenting and education over the last fifty years.

Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research.

We are in the grip of an allergy epidemic. 50 years ago one in 30 were affected, but in Britain today it is closer to one in three. Why this should be is one of modern medicine's greatest puzzles.

Michael Mosley puts himself through a battery of health tests available to people who feel perfectly well. From an expensive heart scan to a new national screening procedure to detect the earliest signs of bowel cancer, Mosley sets out to discover which if any of the tests are worth doing.

Touch, sight, smell, hearing and taste - our senses link us to the outside world. Dr Kevin Fong looks back through 40 years of Horizon archives to find out what science has taught us about our tools of perception - why babies use touch more than any other sense, why our eyes are so easily tricked.

The film follows Rosemary, Phil and Ray as they undergo remarkable new treatments - from a billion pound genetically targeted drug designed to fight a type of skin cancer, to advanced robotic surgery.

Horizon reveals the science behind our perception of colour, a highly subjective illusion.