(HealthDay News) -- Flying is safe for most healthy women who are pregnant, the American Congress of Obstetricians and Gynecologists (ACOG) says, although some airlines have restrictions during the last month of pregnancy.

(HealthDay News) -- Conjunctivitis occurs when the membrane that protects the eye, the conjunctiva, becomes inflamed. A red, watery eye is a primary symptom of this very contagious condition.

WEDNESDAY, Sept. 15 (HealthDay News) -- Radiation exposure increases the risk that cancer survivors will go on to develop another malignancy, finds a new study.

WEDNESDAY, Sept. 15 (HealthDay News) -- American children from low-income families who are exposed to well-structured, attentive and stimulating preschool programs between the ages of 2 and 4 years are less likely to develop behavioral problems during their preteen years, new research says.

WEDNESDAY, Sept. 15 (HealthDay News) -- A gender gap in the ability of boys and girls to do spatial reasoning -- a divide that appears to favor boys -- can be eliminated through a specialized education program, new Israeli research suggests.

WEDNESDAY, Sept. 15 (HealthDay News) -- Proven smoking cessation treatments save money as well as lives, according to a new study.

WEDNESDAY, Sept. 15 (HealthDay News) -- Brain imaging may help identify sleep disorder patients at greatest risk for neurodegenerative diseases such as dementia and Parkinson's disease, an international team of researchers has found.

WEDNESDAY, Sept. 15 (HealthDay News) -- Forgetting someone's name, losing track of a parked car or misplacing a set of keys may be common occurrences in adulthood, but there is nothing normal about them, a new study claims.

WEDNESDAY, Sept. 15 (HealthDay News) -- Fresh on the heels of a similar report released earlier this week, a new study shows that men who have a low prostate-specific antigen (PSA) level at 60 do not really need future screening.

WEDNESDAY, Sept. 15 (HealthDay News) -- Patients suffering from a severe, inherited blood disorder may one day benefit from a new gene therapy and no longer need regular blood transfusions, new research suggests.

WEDNESDAY, Sept. 14 (HealthDay News) -- The level of Americans' prejudice and discrimination toward people with serious mental illness or substance abuse problems didn't change over 10 years, a new study has found.

WEDNESDAY, Sept. 15 (HealthDay News) -- Social networks may help health officials predict epidemics of flu and other infectious diseases, according to new research.

WEDNESDAY, Sept. 15 (HealthDay News) -- A new study is helping unravel an enduring mystery surrounding autism: Why boys are much more likely to be affected by the disorder than girls.

TUESDAY Sept. 14 (HealthDay News) -- A new antibiotic-resistant germ that apparently has it origins in India has sickened a handful of people in North America, with three of the cases reported in the United States, health officials said Tuesday.

WEDNESDAY, Sept. 15 (HealthDay News) -- In ongoing early stage research, an experimental drug appears to go some distance toward reducing the tell-tale inflammatory impact of the deadly bone marrow disorder known as myelofibrosis.

WEDNESDAY, Sept. 15 (HealthDay News) -- Children with an autism spectrum disorder tend not to yawn "contagiously" -- that is, yawn in response to seeing others yawn, a new study suggests.

WEDNESDAY, Sept. 15 (HealthDay News) -- Laws that ban smoking in workplaces and public settings seem to show a fringe benefit: Scottish researchers report that such legislation is linked with a decline in hospital admissions for childhood asthma.

WEDNESDAY, Sept. 15 (HealthDay News) -- When people with chronic kidney disease and type 2 diabetes take certain anemia drugs, the level of hemoglobin cells in their blood should go up.

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

WEDNESDAY, Sept. 15 (HealthDay News) -- The number of women worldwide who die from complications during pregnancy and childbirth has decreased 34 percent in the past 20 years, but more needs to be done to reduce the 1,000 maternal deaths that still occur each day, says a report released Wednesday.

WEDNESDAY, Sept. 15 (HealthDay News) -- Krystexxa (pegloticase) has been approved by the U.S. Food and Drug Administration for adults with gout who do not respond to, or who cannot tolerate, standard treatments.

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

WEDNESDAY, Sept. 15 (HealthDay News) -- U.S. health advisers were split Wednesday over whether the diet drug Meridia should be pulled from the market, because of evidence that it increases the risk of heart attack and stroke.