Ice Bucket Challenge risky for health of some people, Hong Kong doctors say
Hong Kong physicians say pouring a bucket of freezing water over someone for charity could be risky if they are ailing, elderly or pregnant

Hong Kong doctors have poured cold water on a charity craze that is sweeping the globe, warning that "vulnerable'' people could be risking their health.
The Hong Kong Medical Association says the Ice Bucket Challenge could have serious consequences for participants from vulnerable groups, including the elderly, expectant mothers, people with heart conditions and those suffering from high blood pressure.
Launched in the United States to raise money for motor neurone disease sufferers, the campaign has gone worldwide and has raised funds for a range of charities. Celebrities and ordinary people alike have taken up the challenge to either donate to charity or be doused with a bucket of icy-cold water. Most participants get a dousing and donate.
The doctors' warning came a day after China Daily ran a commentary criticising the fund-raising effort on another ground - as a waste of water amid shortages at home and overseas.
Association president Dr Louis Shih Tai-cho said the warning was necessary due to a lack of awareness of the potential dangers, or of safety measures.
"There are definite health risks. We think people with high-blood pressure or heart disease, the elderly and pregnant women should be careful," Shih said.