Researchers say that within a short two to four years, the chemistry between a couple begins to wear off. So even if it's normal for long-term couples to lose "the spark" over time, how can they keep the romance alive?

In this video, Senior VP of Experts Melanie Gorman turns to YourTango Experts Sheila Paxton, Barbara Schiffman, Sherri Nickols and Charles Orlando to explain how to make date night zesty and exciting again.

"I think that changing environment is one way to stir up the chemistry in any relationship no matter if its a new one or many decades." Schiffman says.

"Now we go into the next phase of the relationship and we do get more playful," says Paxton, "we've got to be more resourceful to keep it fresh."

Want to learn more? Check out the video above!

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