SUNDAY, May 19 (HealthDay News) -- Sleep apnea, the condition that robs sufferers of deep sleep by endlessly and subconsciously waking them up, becomes more common as people age. Now, a small new study raises the possibility that it may somehow cause -- or be caused by -- Alzheimer's disease.

FRIDAY, May 17 (HealthDay News) -- Alcoholics who smoke have more problems with memory, problem solving and quick thinking than those who are nonsmokers, researchers have found.

FRIDAY, May 17 (HealthDay News) -- After age 50, excess body fat hardens the arteries, potentially increasing the risk of dying from cardiovascular disease, according to a new study.

THURSDAY, May 16 (HealthDay News) -- Patients with heart failure or a heart attack appear to be at high risk of death or readmission to the hospital for at least one month after being discharged, researchers say.

THURSDAY, May 16 (HealthDay News) -- Men who are physically fit in middle age have a lower risk of developing and dying from certain cancers, new research indicates.

WEDNESDAY, May 15 (HealthDay News) -- There's some good news for people who have had certain kinds of skin cancer: A new study suggests that their odds of developing Alzheimer's disease may be significantly lower than it is for others.

WEDNESDAY, May 15 (HealthDay News) -- If you're a man, the pain-killing medications known as opioids may do more than relieve pain -- they may also put a damper on your sex life.

WEDNESDAY, May 15 (HealthDay News) -- High-salt diets have long been linked to high blood pressure, but new research finds that those with the condition may have a far greater preference for salty foods than those with normal blood pressure.

TUESDAY, May 14 (HealthDay News) -- A new combination drug therapy for osteoporosis appears to increase bone density more effectively than any treatment now on the market, according to the results of a small clinical trial.

TUESDAY, May 14 (HealthDay News) -- Dentists, as it turns out, may have one more reason than the rest of us to be wary of alligators. The toothy reptiles may one day put those who install implants, bridges and dentures out of their jobs.