Most of us have experienced that crazy, out of control feeling at the beginning of a new romance. Our heart races, we feel a rush of adrenaline, and all we want to do is be with that person. This is known as passionate love, and it feels wonderful and exciting.

But here’s the truth: passionate love declines in most romantic relationships after about 12 to 18 months. Most couples fail to maintain the urgent longing for each other that originally led them to be together.

So how do you keep the passion alive in your relationship?