The World Health Organization is sounding the alarm over H5N1 bird flu becoming human pandemic. Analysts are calling for immediate mass vaccinations of poultry.

The virus is already responsible for killing 54 people in Asia and appears to spread only by close interaction of humans with sick birds or infected poultry.

A study into Ritalin and other stimulant drugs for children will be conducted to determine whether these drugs increase the risk of cancer in later life.

A recent University of Texas and M.D. Anderson Cancer Center study found damage to the chromosomes of 12 children who took Ritalin for three months.

A Canadian researcher claims spam can be healthy - if its unsolicited messages contain body-bettering tips.

Prof. Ron Plotnikoff of the University of Alberta's Center for Health Promotion Studies and his colleagues studied the effects of the weekly e-mail reminders for 12 weeks.

After receiving reports of people becoming ill in four separate states,The Cold Stone Creamery is recalling its ice cream products containing cake batter.

Both the company and The Food and Drug Administration said the cake batter products may be associated with salmonella outbreaks. So far, there have been reports of 14 people becoming sick.

British researchers devise a simple formula, using the radiation dose and the age the woman receives it, reveals her remaining "window of fertility".

In a BBC health report, Drs. Tom Kelsey at St Andrews and Hamish Wallace at Edinburgh University say this will help physicians make reliable predictions when counseling women.