A news item in September 2013 reported that a family was going to live without inventions made since 1986. They were going to try to manage without such items as mobile phones, the internet and e-mails, DVD players, CDs, MP3 players, digital cameras, cable television, modern video games and, of course, internet-based social media. When we consider how all-pervading these things are, we have to realise that children brought up with them live in a completely different world from that of earlier generations. The long-term effects these things will have on their bodies and minds are unknown. Physical effects are…