By RITA WATSON, The Providence Journal

The interplay of companionships and heart attacks might seem a stark contrast to the February obsession with Valentine's Day love, hearts and flowers. But February is also American Heart Month.

BOSTON - Love is an emotion, a decision and a state of insanity. Similarly, infidelity might be called love in disguise, a passionate madness. As Valentine's Day approaches, we will be lost in a swirl of hearts, flowers and romance. Millions of cards will be exchanged and it is estimated that up to 190 million roses will be purchased in the U.S.

BOSTON - Gratitude as an attitude is making news. Researchers are reporting that the words "thank you" might be the secret to good health and a long life. With holiday stress upon us, a positive attitude is a relationship challenge. However, The Journal of Happiness Studies makes a convincing argument for gratitude.

BOSTON - Unusual signs began popping up in Des Moines, Iowa, during graduation and prom nights with a message that should resonate throughout the summer and teen years, "Parents Who Host Lose the Most." The signs were to encourage parents hosting parties to be wary of alcohol use.

BOSTON - It appears that smiling, happiness and optimism are becoming ever more a part of scientific investigations looking for links between a positive attitude and health. Over the past few months, reports are flourishing. Some are convincing.

When Glamour magazine featured a nude plus-size model, women applauded, while physicians shook their heads in dismay. Was this a sign that women have given up on finding their healthy weight? Before the women's cheers subsided, Ralph Lauren fired his size 4 model, weighing in at 120 pounds, for being too fat.

When I wondered aloud, "Is infidelity a sin whose time has come?" my colleague retorted, "It never left!" Indeed, the string of politicians, sports figures and movie stars cheating on their wives is an endless parade of mea culpas.