An expert panel is expanding an earlier recommendation that seniors be vaccinated if they have contact with very young infants. Now just about all seniors will be candidates for vaccination. Adults and teens have been on the recommended list for years already.

The U.S. Food and Drug Administration's decision to block imports of Brazilian orange juice for the next 18 months could drive wholesale prices of concentrated orange juice up by 20 to 45 percent. The industry agrees that higher prices are indeed likely because orange juice already is in short supply.

Psychiatrists have long claimed that gardens hold healing powers for mental illness. Now, scientists are exploring a new field called horticultural therapy for everyone from troubled youth to veterans. But just how gardens affect the brain remains mainly a mystery.

The offspring of women who were given micronutrient supplements (minerals needed in small quantities, such as iron, iodine and vitamin A) before they became pregnant had gene modifications at birth as well as when they were tested at nine months.

Is fructose being unfairly blamed for the obesity epidemic? Or do we just eat and drink too many calories? Researchers reviewed more than 40 published studies on whether the fructose molecule itself causes weight gain. In 31 "isocaloric" trials they reviewed, participants ate a similar number of calories, but one group ate pure fructose and the other ate non-fructose carbohydrates. The fructose group did not gain weight.

The levels of the environmental pollutant perfluorooctanoic acid (PFOA) that mothers had in their blood during pregnancy increased the risk of obesity in their daughters at 20 years of age.