(HealthDay News) -- A good set of tools can make most any job easier, but they can also cause injury if used improperly.

(HealthDay News) -- When a toenail grows down and pushes into the skin, it's known as ingrown. Usually, the big toe is affected, but it can happen on any toe.

TUESDAY, July 6 (HealthDay News) -- Five-year survival rates for U.S. lung transplant patients vary widely depending on where they had their operation, a new study finds.

TUESDAY, July 6 (HealthDay News) -- Cellular changes in fat tissue play a major role in the development of type 2 diabetes, a new study shows.

MONDAY, July 5 (HealthDay News) -- Middle-aged and older men who take erectile dysfunction drugs such as Viagra are more likely to have sexually transmitted diseases, a new study of more than 1.4 million men finds.

MONDAY, July 5 (HealthDay News) -- Too much time spent watching television and playing video games can double the risk of attention problems in children and young adults, new research finds.

MONDAY, July 5 (HealthDay News) -- American children are seeing fewer TV ads for candy and beverages, but more fast food commercials, finds a new study.

TUESDAY, July 6 (HealthDay News) -- High concentrations of a blood plasma protein called clusterin may influence the development, severity and progression of Alzheimer's disease, English researchers report.

TUESDAY, July 6 (HealthDay News) -- Anxiety disorders may increase the risk of heart attack, stroke, heart failure and death in people with heart disease, a new Dutch study suggests.

MONDAY, July 5 (HealthDay News) -- High school students at a private school in Rhode Island who started school a half-hour later in the morning were in better moods, more alert, less depressed and more likely to actually attend class than before the time change, a new study shows.

TUESDAY, July 6 (HealthDay News) -- A faulty gene that greatly increases a woman's risk of breast cancer also boosts a man's risk for the disease, a new study finds.

TUESDAY, July 6 (HealthDay News) -- Routine adult vaccinations for flu and other conditions don't appear to increase the risk of rheumatoid arthritis (RA), a new study has found.

TUESDAY, July 6 (HealthDay News) -- While more Americans are being screened for colon and breast cancer than ever before, millions aren't getting the tests and thousands are dying needlessly as a result, according to U.S. health officials.

TUESDAY, July 6 (HealthDay News) -- Teens who "cyberbully" others via the Internet or cell phones are more likely to suffer from both physical and psychiatric troubles, and their victims are at heightened risk, too, a Finnish study finds.

TUESDAY, July 6 (HealthDay News) -- Patients admitted to an intensive care unit over the weekend may be more likely to die than those admitted at other times, perhaps because of reduced staffing, a review of research finds.

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

TUESDAY, July 6 (HealthDay News) -- Lower may not be better when it concerns blood pressure levels in type 2 diabetics who also have heart disease.

TUESDAY, July 6 (HealthDay News) -- The popular supplement glucosamine offers little or no relief for sufferers of chronic lower back pain caused by osteoarthritis, a new study finds.

TUESDAY, July 6 (HealthDay News) -- People who have white blood cells with shorter telomeres may be at a higher risk of developing cancer, especially aggressive cancers that are more likely to kill, new research suggests.

TUESDAY, July 6 (HealthDay News) -- A tiny telescope that's implanted in an eye affected by advanced age-related macular degeneration (AMD) has been approved by the U.S. Food and Drug Administration.