【明報專訊】WHO (World Health Organisation, 世界衛生組織) figures show that, at the end of 2009, there were 4.6 billion mobile phone subscriptions in the world. According to a report released by the WHO and the IARC (International Agency for Research on Cancer, 國際癌症研究中心, a specialised WHO agency), if you are a heavy mobile phone user (use it 30 minutes a day for ten years), you are in 40% greater danger of getting a glioma (a kind of brain tumour, 神經膠質瘤).