Sunbathing is known to cause skin cancer - but it may also help people survive when they get it, scientists are reporting.

Bone cancer led to Bryall McPherson's right arm being amputated. But she has not lost her bubbly personality or her zest for life.

Hato Paparoa was once one of the faces of Child Cancer, but this year signed autographs until his arm hurt at the Berlin film festival.