Even the most optimistic people feel heartbroken, stressed or disappointed once in a while. Studies show that practicing gratitude can help you proactively help yourself feel better.

Those who practice gratitude are not only happier, they're healthier too! Gratitude can improve your heart health and lower your blood pressure. It will help you feel more confident and display less aggression. For example, even that person who cut you off while driving home from work may not bug you so much if you have a thankful attitude to begin with.

Try these approaches to actively practice gratitude each day:

• Start a gratitude journal. Write down three things you are thankful for at the end of each day. This will even help you sleep more soundly.
• Encourage a friend in need. Focusing on the positive will help you both feel good. Help them see there are always reasons to be grateful.
• Tell someone you love them. Or let a friend know they're important to you. It will make them feel appreciated - and you'll feel great about it too.