The company's long-term prospects remain bright, even after recent challenges.

The old proverb "patience is a virtue" is very true in the world of investing. Investors who aren't scared off by a struggling stock, have the ability to see the company's long-term potential, and decide to buy and hold on for a number of years could reap the rewards.

And today, UnitedHealth Group ( UNH 3.77% ) , a health insurance leader that's faced challenges in recent times, may offer investors this opportunity. From a federal probe to disappointing earnings, the company has delivered bad news this year -- and its stock price has seen itself cut in half just within the past several months. But it's important to focus on the complete picture, and when we do this, it's clear this healthcare stock cou

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