George Burns, an actor and humorist, said, "If you ask, 'What is the single most important key to longevity?' I would have to say it is avoiding worry, stress, and tension. And if you didn't ask me, I'd still have to say it." Burns lived to be some 100 years old, enjoyed making people laugh, and obviously followed his own advice.
You may be wondering how we can prevent worrying when our lives are so uncertain, so filled with problems and needs? Let me offer you a small bit of advice: In the scriptures it says "Humble yourselves under the mighty hand of God, that He may exalt you in due time, casting all your care upon Him, for He cares for you" (1Peter5:6-7)