(HealthDay News) -- As men age, it's common to develop an enlarged prostate, which can cause symptoms that include slowed urination, painful urination and a strong and sudden urge to urinate.

(HealthDay News) -- People who have inflammatory bowel disease (IBD) have flares when symptoms worsen, and periods of remission when symptoms ease up.

THURSDAY, Sept. 1 (HealthDay News) -- Lost sleep costs the average American worker 11.3 days, or $2,280, in lost productivity each year, and the total cost to the nation is $63.2 billion annually, a new study says.

THURSDAY, Sept. 1 (HealthDay News) -- Elevated blood levels of harmful toxins from gut bacteria occur in about one in five infants and toddlers with congenital heart disease, and the risk is even higher after they have heart surgery, a new study has found.

THURSDAY, Sept. 1 (HealthDay News) -- Black Americans are more likely than whites to have a condition in which the kidneys spill protein into the urine, which may help explain why blacks are four times more likely than whites to develop kidney failure, a new study suggests.

THURSDAY, Sept. 1 (HealthDay News) -- The intensity of exercise, not the duration, is what's important in terms of improving your chances of living a longer life, a new study suggests.

WEDNESDAY, Aug. 31 (HealthDay News) -- French fries and potato chips may have given potatoes a bad rap, but new research finds the lowly tuber -- when cooked correctly -- may actually be good for the heart.

THURSDAY, Sept.1 (HealthDay News) -- Molecular signals from stem cells within the skin's fatty layer trigger hair growth in mice, a finding that may lead to new treatments for baldness in people, researchers report.

THURSDAY, Sept. 1 (HealthDay News) -- Microscopic brain lesions that are too small to be detected using brain imaging technology may be the cause of many common age-related problems such as shaking hands, stooped posture and difficulty walking, a new study says.

THURSDAY, Sept. 1 (HealthDay News) -- After two days of hearings into the potential health risks of silicone breast implants, U.S. Food and Drug Administration officials said Wednesday that the devices are safe and will remain on the market.

THURSDAY, Sept. 1 (HealthDay News) -- Most children need to get a seasonal flu vaccination this year, even if they got one last year, the American Academy of Pediatrics says.

THURSDAY, Sept. 1 (HealthDay News) -- Patients with coronary artery disease are at increased risk for clotting and bleeding complications following orthopedic surgery, a new study finds.

THURSDAY, Sept. 1 (HealthDay News) -- Strokes are on the rise among teens and young people, a new government report shows.

THURSDAY, Sept. 1 (HealthDay News) -- You are what you eat -- especially when it comes to the microbes that live in your gut.

THURSDAY, Sept. 1 (HealthDay News) -- Researchers report that they used stem cells to create cultured red blood cells and then successfully injected the blood cells back into the human donor who provided the stem cells in the first place.

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

THURSDAY, Sept. 1 (HealthDay News) -- Smoking may increase sex hormone levels in postmenopausal women, a new study suggests.

THURSDAY, Sept. 1 (HealthDay News) -- Venus Williams' surprising withdrawal from the U.S. Open on Wednesday has shifted the spotlight from the tennis star's daunting serve to her diagnosis with a little-known disease known as Sjogren's syndrome.

THURSDAY, Sept. 1 (HealthDay News) -- First responders and workers at the World Trade Center site right after 9/11 continue to suffer an excess of physical and mental ills, including a possible increase in their risk for cancer.

THURSDAY, Sept. 1 (HealthDay News) -- About half of Americans will experience some form of mental health problem at some point in their life, a new government report warns, and more must be done to help them.

THURSDAY, Sept. 1 HealthDay News) -- After rising steadily through the 1990s, the rate of circumcisions for newborn American boys has waned a bit over the past decade, a new report shows.