Currently abundant on most grocery store shelves, seals of approval for purportedly healthful food selections may become scarcer in the coming year. Some labels claiming foods are "smart choices" or "heart healthy" are patently misleading, according to the U.S. Food and Drug Administration (FDA), which has threatened to prohibit such promotional labeling when it ignores unhealthy aspects of a product. [More]

A new study by cancer researchers shows for the first time that the loss of a gene called PTEN from a type of normal cell in breast tumors can dramatically change the environment within the tumor in ways that foster the tumor's growth.

Researchers released a new study on the installed costs of solar photovoltaic (PV) power systems in the US, showing that the average cost of these systems declined by more than 30 percent from 1998 to 2008. Within the last year of this period, costs fell by more than 4 percent.

People with relatively extreme opinions may be more willing to publicly share their views than those with more moderate views, according to a new study. The key is that the extremists have to believe that more people share their views than actually do, the research found.

Researchers may be hot on the heels of a Holy Grail of cancer therapy: They have found a way to not only protect healthy tissue from the toxic effects of radiation treatment, but also increase tumor death.

Peering far beyond our solar system, NASA researchers have detected the basic chemistry for life in a second hot gas planet, advancing astronomers toward the goal of being able to characterize planets where life could exist. The planet is not habitable but it has the same chemistry that, if found around a rocky planet in the future, could indicate the presence of life.

Women are better than men at distinguishing between emotions, especially fear and disgust, according to a new study. Scientists demonstrated that women are better than men at processing auditory, visual and audiovisual emotions.

A new form of spectroscopy, a scientific method that uses electromagnetic radiation to identify materials, and a novel nanoelectronic device to detect signals, can identify explosive liquids, or liquid components for the fabrication of explosives, in usual plastic bottles almost instantly.

Supervised exercise programs that include high and low intense cardiovascular and resistance training can help reduce fatigue in patients with cancer who are undergoing adjuvant chemotherapy or treatment for advanced disease. The exercise training also improves patients' vitality, muscular strength, aerobic capacity and emotional well-being, according to new research.

A new study suggests that maternal smoking may increase the level of distress of newborns.