A U.K. researcher confirms what many dog lovers already know -- dogs are good for your health.

Apparently, dog owners are generally healthier than non-pet-owners. They have lower blood pressure and cholesterol, suffer fewer minor ailments, and stray from serious medical problems too. Dogs can prevent their owners from getting sick, help them recover more quickly when they do fall ill, and they can even warn of cancer, heart attack, epileptic seizures, and hypoglycemia, says Dr. Deborah Wells from the Canine Behaviour Centre of Queens University in Northern Ireland.

Wells, whose study is published in the British Journal of Health Psychology, says dogs buffer us from stress -- a well-known cause of illness -- and promote general well-being. Owning a dog leads to increased physical activity and increases development of social interactions -- both of which minimize stress and contribute to human health.

While Wells found those who own both dogs and cats benefit from their pets, dog owners enjoy improved health for much longer than cat owners.

My little boys love candy -- and sometimes I think they eat healthy food only to earn sweets. Their constant badgering about candy has led to a recent ban on artificially-sweetened stuff in our house. If it's not in the house, they can't have it. No arguments. That's it. Fortunately, they also love fruit. So what we lack in candy we now make up for with fruit -- apples and bananas and grapes and peaches and strawberries are favorites. And just today at lunch, three-year-old Danny cleared his plate of strawberries and then proclaimed, "I love strawberries!" And I love that Danny loves strawberries -- especially in light of the news that hit papers today.

It seems that candy lovers are more likely than salt lovers to eat fruit. A study published in the journal Appetite found that people who eat candy, cakes, and other sweet snacks eat more fruit than people who prefer salty snacks like chips and nuts. Maybe that's the reason for my boys' equal affection for both candy and fruit -- and their indifference about salty treats. Apparently, the craving for something sweet is satisfied by both candy and fruit -- which is hopeful for kids whose parents might now steer them in the direction of the more healthy option. And for dieters who might incorporate more fruits into their menus in an effort to cut calories. And for anyone really who is concerned that a diet rich in candy, cookies, and cakes might contribute to illness and disease while fruits and vegetables encourage healthful living.

An apple a day.

In the second part of the two-part exclusive interview with ABC's Good Morning America Diane Sawyer, Sheryl Crow shares she is cancer-free and feeling great as a breast cancer survivor. The diagnosis of breast cancer came as a surprise as she is not a smoker and has no family history of the disease. She received enormous support from her family and friends during treatment, whom she refers to as "this incredible tribe of women." Before Dana Reeve died of lung cancer, she gave Crow advice on dealing with the emotional aspects of being a newly-diagnosed cancer patient and dealing with the recent separation from Lance Armstrong by telling her that the only way to go through grief was to grieve.

Crow talked about meditating and changing her diet. "I kind of went into a full-on Eskimo diet, where I ate a lot of salmon. In fact, I'm salmoned out of my brains ... and really green vegetables, just eating really clean, organic food. Listen, I haven't had a doughnut in I can't remember when."

Breast cancer forced Crow into an introspective place of self-realization in facing and overcoming fears -- and the wisdom that comes with that when she said she tried to at least address her fears and not be overcome by them. "The fear of things not always working out. You come to a point in your life where you realize it's not my job to prove to my parents or to my record label or to the world or to my lover that I matter. The fact is that you matter."

"It's not a good place to be concerned with always being right with everybody, always pleasing people, because ultimately you wind up betraying yourself a lot."

Crow shared that she sees her breast cancer diagnosis and being a cancer survivor as part of life's deepening experiences where obstacles are removed and opportunities come in.

Last Friday night, Crow joined the Dave Matthews Band in a concert at Fenway Park. But before she went onstage -- in part of giving back as a cancer survivor --  she made an unannounced surprise visit to Boston's Dana-Farber Cancer Institute to visit children with cancer at the Jimmy Fund Clinic.