3. Focus on gratitude

Do you feel grateful for the good things in your life? If not, it's time to start.

Researchers have found that feelings of thankfulness can help improve sleep, diminish fatigue, increase confidence and even lessen depression. One way to increase your feelings of gratitude is to start journaling.

Keeping a gratitude journal — just writing down things you're grateful for — has been found to actually improve biological markers that indicate heart health. Don't want to carry a notebook? There are plenty of phone apps that can help you express gratitude or share happy moments.

Like anything else, engaging in loving kindness gets easier with practice. Try thinking positive thoughts about people in your life. Write down the things you're grateful for this week. Set aside 10 minutes to meditate. You may just find a happier, healthier you.