We're all different; some of us find happiness in work, others in relationships and family. No matter what satisfies us in our lives, there are some common strategies that can help you achieve happiness in life.  Here are a few tips you can customize and use to improve your mood and quality of life:

1. Make Sure You Get Enough Rest - Without sufficient sleep and rest, the body is tired and you feel deflated and low on energy.  It's almost impossible to feel happy if you're feeling fatigued and depleted. Ever heard of the saying "early to bed, early to rise, that's the way to be happy and wise"?  Well it rings true; countless studies show that the quality of your sleep is directly related to your mood.

2. Try to Incorporate Exercise in Your Daily Routine - Physical activity and exercise are a great way to get those endorphins flowing. Endorphins are the body's natural painkiller. Exercise releases these endorphins in your system and gives you a feel-good rush, lifting your mood dramatically. In fact, exercise is such a quick and efficient way to improving your mood and making you feel happy that every time you're in a bad mood or find yourself feeling sad, the best thing to do is get dressed and go for a walk, or better yet, a jog if you're up to it.

3. Grin and Bear It - Even when we're feeling sad, studies have shown that smiling and laughing, even when we're not in the mood can actually make us happier. It can be hard to do, but try to think happy thoughts, remember something that will bring a smile to your face and you may find the sadness you're feeling quickly dissipating.

4. Gain Some Perspective - Whenever you find yourself feeling sad or depressed, try to remember that there are people out there who are in much worse situations. If you're feeling sick and miserable, chances are there are people who are sicker and more miserable than you. Putting your situation into its proper perspective can save you from wallowing in an endless pit of self-pity.

5. Try to Help Others - Try to do some volunteer work; helping others can give you a tremendous feeling of self-worth and satisfaction. Helping those who are less fortunate than you will also give you a healthy sense of perspective and make you appreciate what you have.

Customize and incorporate these five simple tips into your life and you may find that elusive thing we call happiness a common commodity in your life!