We all know that when we are in love we need to tell our partner that we love them. But, there are two specific words that are equally important to say to that special someone. What are these two words and why do we need to say them everyday, or many times in a day? I'm glad you asked.

According to research, it is very important to tell your one true love, "thank you." And say it every day. Better yet, say it multiple times a day.

Why? It can be the key to a stronger, long-lasting relationship, Prevention magazine reports of research conducted by the University of North Carolina at Chapel Hill and the University of California, Santa Barbara. So, say "thank you" once a day and stay happy much longer.

Do you tell your significant other "thank you"? If not, will reading this story make you want to tell them "thank you" to the love of your life?

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