"The World Health Organization (WHO) estimates that over one billion people are overweight globally, and that if current trends continue, that number will increase to 1.5 billion by 2015. This is due to a number of factors, including a global shift in diet towards increased energy, fat, salt and sugar intake, and a trend towards decreased physical activity due to the sedentary nature of modern work and transportation, and increasing urbanisation." For the depressing statistics and more: WHO Press Release
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