The average teenager spends more time on social media than asleep. (GWI, 2016) Explain the causes of the increase in social media use, and the effects on the individual. Are the effects largely positive or negative? The World Health Organisation (2016) states, ‘Globally, the number of overweight children under the age of five, is estimated to be over 42 million. Close to 31 million of these are living in developing countries.’ Identify the main causes of the increase in childhood obesity in developing countries and discuss the socio-economic and health effects of the phenomenon.