For children aged four to eight, the AHA suggests no more than three teaspoons of sugar a day, about 130 calories of a 1,600-calorie diet

Some of China's practices are also worth learning, such as how it trains its officials

She has received a number of awards for her work, including the Meyenburg Foundation Award for Cancer Research and the Robert Koch Prize

I was one of the torchbearers for the Beijing Olympic Games torch relay in Hefei in 2008

Over the last 21 years, South Korean teacher Cho Sung-hye has contributed much to the friendship between the people of her country and China