New research finds that having a dog inside the house may not be good for children who do not respond well to air pollution because they have asthma.

Dr. Rob McConnell, professor of preventive medicine at the University of Southern California's Keck School of Medicine, did a study looking at the link between chronic cough, phlegm production (bronchitis) and dog and cat ownership in 475 children.

A new study by University of California shows that the workers who put more than 51 hours at the office each week were 29 percent more likely to have high blood pressure than those who worked 39 hours or less.

Dr. Haiou Yang of the University of California in Irvine note in the journal Hypertension that all past research linking long work hours and high blood pressure has been done among Asian workers.

Researchers in the U.S. say that the body's immune system helps in the progression of gum disease, encouraging cells to "eat away bones that support the teeth."

The discovery might help scientists to find out methods to stop bone loss and improve health outcomes of patients with periodontal disease.

US and Canadian researchers say they have created an inhibitor that could prevent anthrax from attacking the body and that the approach could also be used to prevent SARS, influenza and AIDS.

The current treatment for anthrax inhalation is antibiotics, but although they can slow the progression of the toxin's effects, seventy-five of those treated with antibiotics will still die. And pathogens can mutate and develop resistance to antibiotic treatments, making them ineffective.

A new study conducted by Cedars-Sinai Medical Center, in Los Angeles shows that obese women with ovarian cancer typically fare worse than their thinner counterparts.

Health Day News quotes senior researcher Dr. Andrew Li, a gynecologic oncologist as saying, "If women develop ovarian cancer and they are obese, they have a lower chance of survival than those who are overweight or normal weight."