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While it鈥檚 true that one鈥檚 inclination to happiness is partially inherited, an individual鈥檚 choices and behaviors also contribute significantly, and research has found that the happiest people all have certain traits in common.

The experience of having an 鈥渆arworm鈥濃�攁 song that鈥檚 stuck in your head鈥攊s extremely common. But why do they happen? And how do you get rid of one?

A little bit of worry and stress is normal 鈥� even beneficial. But chronic anxiety may raise your risk for heart problems.

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If you feel anxious now and then, that's perfectly normal. In fact, worrying can spur you to take positive action that may benefit your health, such as getting screening tests or doing regular exercise. But excessive worrying can have the opposite effect.

"Small amounts of anxiety and stress can push people to be more productive. The problem happens when anxiety becomes so overwhelming that you're unable to function normally," says Dr. Christopher Celano, a psychiatrist at the Cardiac Psychiatry Research Program at Harvard-affiliated Massachusetts General Hospital. That level of worry and stress may represent an anxiety disorder, a group of conditions that affect some 40 million adults in this country.

Recreating the workplace dynamics helps older men strengthen their social bonding and thinking skills.

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Men who retire are often happy to leave behind their work life, but one aspect they still need is the workplace's packlike male bonding. Group lunches, team projects, watercooler banter 鈥� all these help men establish social connections that keep their brains and bodies active and听healthy.

"Women tend to make friends across their life span, while men acquire friends in clumps through shared experiences like sports, the military, and work," says Dr. Richard S. Schwartz, a psychiatrist with Harvard-affiliated McLean Hospital. "When one source is eliminated, men tend to lose some of those friends over time and have to find other ways to connect with people and fill those missing gaps."

A trio of studies investigated the connection between the ability to accept the negative emotions generated by stressful situations and a person鈥檚 long-term psychological health.

When you live with physical pain, changing your reaction to it can help you better manage discomfort and obstacles.

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Dealing with chronic physical pain, no matter the source or severity, is a constant challenge, but sometimes the emotional pain that comes with it can be just as trying. In fact, more than half of people with pain feel they have lost control of their lives, according to the American Academy of Pain Medicine.

"In general, men tend to be less verbal about seeking help with their physical pain," says Dr. Ellen Slawsby, director of pain management at the Benson-Henry Institute for Mind Body Medicine at Harvard's Massachusetts General Hospital.