FRIDAY, Feb. 22 (HealthDay News) -- The picture isn't necessarily pretty when it comes to Alzheimer's disease.

FRIDAY, Feb. 22 (HealthDay News) -- Feeling insecure and frequently anxious about your romantic relationship can actually harm your health, new research contends.

(HealthDay News) -- If your eyes are red, itchy and watery because of allergies, there are steps you can take to help ease your discomfort.

(HealthDay News) -- Most everyone is constipated at one time or another. The U.S. National Digestive Diseases Information Clearinghouse defines the condition as occurring when a person has a bowel movement fewer than three times per week.

FRIDAY, Feb. 22 (HealthDay News) -- Premature babies who spend their first few days of life in the neonatal intensive care unit may be exposed to a possibly harmful chemical widely used in the manufacture of hard plastics, new research says.

FRIDAY, Feb. 22 (HealthDay News) -- Women who have breast reconstruction surgery using a transplanted flap of their own tissue have a low rate of short-term complications, a new study says.

FRIDAY, Feb. 22 (HealthDay News) -- Poor growth among children born with heart defects may be due to abnormalities in growth regulation rather than nutrition problems, a new study suggests.

FRIDAY, Feb. 22 (HealthDay News) -- A few simple and inexpensive changes to school cafeterias can help encourage children to eat healthier foods at lunch, a new study finds.

FRIDAY, Feb. 22 (HealthDay News) -- It's time for that heart to heart with your kids about the dangers of smoking, drinking or illicit drugs. One thing it's best not to bring up: Your own dabbling in such substances in your youth, a new study suggests.

FRIDAY, Feb. 22 (HealthDay News) -- A few simple steps can help patients in the intensive care unit sleep better and reduce their risk of delirium, according to a new study.

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