Q: As the year comes to an end, my wife is asking me when I am going to make my list of New Year's resolutions. She always makes one, and in most years, gets it done. I am a hit-and-miss resolution maker, but mostly miss!

I'm in my 70s and realizing I am not perfect. I know I could accomplish more, improve my health and could help others by volunteering. My excuse is always: "I won't accomplish them anyway!"

As I am going to try my best to do more in 2014, what are some worthwhile ideas to put on my list?

A: Because most of us believe our lives are one-time events and don't know what will happen next, we prefer to stay around as long as we can. To do so, high on the priority list should be remaining healthy. You sound as though you're well aware of that need. Are you physically in good shape? Do you exercise regularly and keep yourself busy? Do you spend too much time watching TV? Are you avoiding stress by keeping your income and expenditures balanced? Remember, if you don't go into a store, then you probably won't buy as much.

Do you socialize and tell your wife at least once a day that you love her? Don't forget to tell your family and friends that you love and care for them, too. We don't always know when our last chance to do that will be. Hugs are winners as well.

Many of us think about these things; actually remembering to do them should be your commitment. It is always a winning ticket!

Q: We have two sons. One is happy and has a positive outlook on life, and the other is unhappy and negative about his life. We love both sons, so what causes the difference?

A: Researchers have and are continuing to research the answer to your question. Experts focus on a number of factors in an effort to understand why: genealogical, environmental, mental, physical and educational, among others.

So far, no studies have been able to provide an answer. It's obvious no two individuals experience the same situations at the same times in their lives.

Even if identical cloning and DNA-matching become a valid reality in our future, it isn't guaranteed our clones will share identical personalities.

Today's rapidity of change and technological improvements allow us to learn more about how we differ: our reactions to things and what motivates us. In the future, researchers will hopefully be able to lead us down the path in which we learn specifics about not only why we differ, but also how to change ourselves!

Doug Mayberry makes the most of life in a Southern California Retirement community. Contact him at [email protected]. To find out more about Doug Mayberry and read features by other Creators Syndicate writers and cartoonists visit the Creators Syndicate website at www.creators.com.