Health roundup: Tomatoes linked to lower stroke risk

Your Tuesday morning health roundup:

Tomatoes and stroke: Could a tomato a day keep stroke away? It might help: A new study shows a decreased stroke risk in men with the highest blood levels of lycopene, an antioxidant found in tomatoes. Lycopene levels are especially high in cooked tomato sauces, purees and pastes. Other sources include watermelon and mango. (Wall Street Journal)

Fish and ADHD: Pregnant women who eat plenty of fish -- as long as it is low in mercury -- may have children who are less likely to exhibit symptoms of attention deficit hyperactivity disorder (ADHD), a new study suggests. The same study found an increased risk of the symptoms in children whose mothers had high blood levels of mercury when they gave birth. (Reuters)

Expired medications: Medications that are long past their expiration dates may still be potent, say researchers who tested drugs that were decades old. The researchers say we may be wasting many health care dollars by throwing away good medicine. But experts caution that medications that have been opened or stored in less-than-ideal conditions may not keep as well. (CNN)

Today's talker: Talk about a surprise. A woman from Alaska who needed a new kidney was scheduled to get one in Seattle Monday from a former co-worker who decided to secretly undergo screening to see if she was a match. Terri Teas only found out about her gift from Judie Wolfe when doctors confirmed the match, almost a year after the two women chatted in a hospital hallway in a chance encounter. (ABC News)