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Healthy relationships take a lot of work. They can be stressful at times, but research proves that the work is beneficial and that relationships are as the term suggests: healthy. Check out the following links to discover how keeping a good pace with your partner can lead to better physical and mental health.

1.Lower Blood Pressure – Making your heart race a bit each day can be a good exercise for keeping blood pressure down, says Jennifer Wolfe at HowStuffWorks. She cites a 2007 study by the U.S. Department of Health and Human Services, in which researchers discovered that happily married participants maintained lower blood pressure levels than single participants. A similar study, she adds, discovered that close platonic relationships can have the same effect.

2.Fewer Mental Health Problems – Challenging and stimulating conversation with a significant other can also keep your mental health in check. According to a 2010 study by researchers at Florida State University, in which 1,621 college students were studied, “individuals in committed relationships experienced fewer mental health problems.”

3.Stronger Immune System – Amanda Greene at Woman’s Day cites a study by Ronald Glazer and Jan Kiecolt-Glaser, in which couples were observed during disputes. Couples who reached an agreement through positive, challenging discussion, she says, showed higher immediate immune function than those who displayed negative behavior. But as the study shows, it isn’t just the relationship that contributes to good health—it’s the work and exercise of the couples themselves.

This post originally appeared on the North American Life Company blog.