TV News LIES

Activating dormant stem cells in the scalp could be the key to banishing baldness, scientists believe. Researchers made the discovery after examining tissue sample from men undergoing hair transplants.

Comparing follicles from bald and hairy scalp patches, they found that both contained the same number of stem cells.But more mature cells called progenitor cells were lacking in the bald areas.Stem cells in the scalp normally develop into progenitor cells, which in turn give rise to new hair growth.

American soldiers with combat-related PTSD (post-traumatic stress disorder) seem to have a significantly higher risk of having diminished concentration, poor memory, headaches, tinnitus and irritability, researchers from Minnesota reveal in an article published in Archives of General Psychiatry. They also found no link between concussion or mild traumatic brain injuries and long-term consequences.

The authors wrote: "Nearly 2 million troops have been deployed to Operation Enduring Freedom and Operation Iraqi Freedom since 2001. High levels of combat exposure have been documented among Operation Enduring Freedom/Operation Iraqi Freedom-deployed soldiers, with increased risk of blast exposure and injury and development of post-deployment mental and physical health problems."

A therapy derived from human embryonic stem cells may help millions of Americans battle a common form of blindness.

Advanced Cell Technology Inc. said Monday that it has received a green light from the U.S. Food and Drug Administration to begin a clinical trial to test its therapeutic cells as a treatment for dry age-related macular degeneration. The company plans to enroll a dozen patients in a Phase I/II trial, which would primarily test the safety of the cells and whether they are well-tolerated by patients.

A blood test so sensitive that it can spot a single cancer cell lurking among a billion healthy ones is moving one step closer to being available at your doctor's office.

Boston scientists who invented the test and health care giant Johnson & Johnson will announce Monday that they are joining forces to bring it to market. Four big cancer centers also will start studies using the experimental test this year.

Phoenix is setting zoning rules to regulate the medical marijuana system Arizona voters legalized in November, officials said. The state Health Department also is drafting rules on who can prescribe and receive a prescription and to ensure secure facilities, The Arizona Republic reported Saturday.

Phoenix planning director Debra Stark said the city aimed to make zoning laws strict enough to protect the community while allowing marijuana in the city.

The path toward obesity starts at a young age — even before babies transition to a solid diet, according to a new study. Almost one-third of 9-month-olds are obese or overweight, as are 34 percent of 2-year-olds, according to the research, which looked at a nationally representative sample of children born in 2001.

The study is one of the first to measure weight in the same group of very young children over time, said lead researcher Brian Moss, a sociologist at Wayne State University in Detroit. The results showed that starting out heavy puts kids on a trajectory to stay that way.