BBC picks up on the story of Apple investors calling for limits on how long children can use their smartphones.

Jana Partners and the California State Teachers' Retirement System (CalSTRS) called on Apple to consider the impact excessive use of smartphones had on the mental health of young people. The two are worried that if Apple does not address growing concerns about smartphone use, its stock market value and general reputation could become damaged.

According to a Reuters report, half of US teenagers believe they are addicted to their mobile phones and feel the need to respond immediately to messages.