High doses of vitamin D may reduce the risk of developing breast, ovarian and colon cancer by about 50 percent.

Experts say more research is needed to draw firm conclusions, from the University of California study, and warn too much vitamin D could harm the kidneys and liver

High doses of vitamin D may reduce the risk of developing breast, ovarian and colon cancer by about 50 percent.

Experts say more research is needed to draw firm conclusions, from the University of California study, and warn too much vitamin D could harm the kidneys and liver

Howard Hughes Medical Institute researchers have discovered a molecular link between a high fat, Western-style diet, and the onset of type 2 diabetes.

The researchers also report that knocking out a single gene encoding the enzyme GnT-4a glycosyltransferase (GnT-4a ) disrupts insulin production

Doctors announce Monday Prime Minister Ariel Sharon is set to undergo a catheterization procedure in the next two to three weeks to repair a small hole in his heart, discovered after he suffered a minor stroke.

Dr. Haim Lotem, head of cardiology at Jerusalem's Hadassah Hospital, says the hole, measuring less than an eighth of an inch wide, is a minor birth defect found in 15 to 25 percent of the population

Singer Don Ho, of "Tiny Bubbles" fame had an experimental heart procedure done in Thailand earlier this month, and has recently returned to his home in Honolulu. Ho says walking was nearly impossible, let alone singing, and would've been a "goner" if he didn't undergo an experimental stem cell procedure on his failing heart.

His publicist, Donna Jung, says, ''We're delighted to say that his health is improving dramatically