(HealthDay News) -- Odors and residues from household chemicals, cleaning products and pesticides can lead to indoor air pollution. Less obvious sources include activities such as cooking or heating your home, the U.S. National Safety Council says.

(HealthDay News) -- Kids may inadvertently reveal personal information on the Internet, making them vulnerable to predators, the U.S. government's Girlshealth.gov Web site warns.

TUESDAY, Sept. 14 (HealthDay News) -- Heart patients with a pessimistic "Type D" personality may be at increased risk for future cardiovascular problems, according to a new review article.

TUESDAY, Sept. 14 (HealthDay News) -- The heart can suffer serious damage because of a cancer-related muscle wasting disease called cachexia, a new study has found.

TUESDAY, Sept. 14 (HealthDay News) -- Researchers say they have developed a new and better method of freezing human sperm for later use in pregnancy attempts.

TUESDAY, Sept. 14 (HealthDay News) -- Genetic differences may explain why enlarged hearts shrink faster in women than in men following aortic valve replacement, say researchers.

TUESDAY, Sept. 14 (HealthDay News) -- The risk of tendon injuries appears to be greater in female athletes with naturally higher levels of estrogen, a small European study suggests.

TUESDAY, Sept. 14 (HealthDay News) -- Children may actually see the world differently than adults, researchers have found.

TUESDAY, Sept. 14 (HealthDay News) -- Seventy-five percent of U.S. newborns delivered in 2007 started life breast-feeding -- a figure that meets federal goals -- but that rate plummeted to 43 percent at six months and 22 percent at one year, a federal government study released Monday shows.

TUESDAY, Sept. 14 (HealthDay News) -- An expert panel concludes that bone-strengthening bisphosphonate drugs such as Actonel, Boniva and Fosamax can actually raise risks for a rare type of fracture of the thighbone.

TUESDAY, Sept. 14 (HealthDay News) -- New research suggests that success rates are higher when in vitro fertilization is done during the springtime.

TUESDAY, Sept. 14 (HealthDay News) -- Fast-action video games may help train people to make quick, accurate decisions in all aspects of life, new findings suggest.

TUESDAY, Sept. 14 (HealthDay News) -- A new study suggests that depressed medical students are more likely than their non-depressed counterparts to think that depression spells big trouble.

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

TUESDAY, Sept. 14 (HealthDay News) -- Nearly half of U.S. surgeons who received at least $1 million in payments from companies that make orthopedic devices such as artificial joints did not disclose their financial ties when they published articles on such devices in medical journals, a new study has found.

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

TUESDAY, Sept. 14 (HealthDay News) -- If doctors are told that they've studied and worked hard to get where they are today, they find it easier to justify taking gifts from drug and medical-device companies, a new study finds.

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.