Wong Sheung-ming, 96, has happily gone on a charity fast every year for the past 16 years to help raise money for poor children on the mainland - and says the only sadness is the passing away of familiar elderly participants each year. The single woman, who lives in an elderly home in Kwun Tong, said she had introduced a dozen housemates to join the event over the years. 'The number is dropping every year as some have already passed away,' she said. The annual event, organised this year by Baptist Hospital, RTHK and World Vision Hong Kong, encourages people over 50 and in good health to take part in a fast for eight hours. This year's event will be held at the Queen Elizabeth Stadium on June 1, aiming to raising $1.9 million. Last year, 2,000 elderly people joined in. More than 25,000 people have taken part in the past 16 years. Ms Wong said the secret to a long life is 'to stay happy and optimistic' and to practise tai chi and play mahjong. Asked whether she needs to prepare for the day, she said: 'I am always ready. There is no preparation at all. I haven't never wanted to give up for a moment over the past 16-years. 'This is what I can do so I want to help. This is not difficult. I am very happy. There are many people doing this together. 'Only a light breakfast that morning and water throughout that day is fine. The day passes quickly. 'I am free at home anyway without much to do, so it is great to help others this year. The happiest thing was able to help others.' The deadline to join this year is May 10. Ms Wong said she had not experienced real hunger, but had seen it on television and in her hometown in Guangdong province when she was young. 'I have seen children in poor health and hunger on TV like those in Xinjiang,' she said. 'I have seen similar situations in my hometown when I was young. It wasn't as serious or as common as elsewhere in China. But not having enough to eat is really awful.'