Monday, February 10, 2014

Chemistry of love: What Cupid's arrow does to your heart and brain

Getting struck by Cupid's arrow may very well take your breath away and make your heart go pitter-patter this Valentine's Day, reports sexual wellness specialists at Loyola University Health System.

"Falling in love causes our body to release a flood of feel-good chemicals that trigger specific physical reactions," said Pat Mumby, PhD, co-director of the Loyola Sexual Wellness Clinic and professor, Department of Psychiatry & Behavioral Neurosciences, Loyola University Chicago Stritch School of Medicine (SSOM) in Maywood, Ill. "This internal elixir of love is responsible for making our cheeks flush, our palms sweat and our hearts race."

Levels of these substances, which include dopamine, adrenaline and norepinephrine, increase when two people fall in love. Dopamine creates feelings of euphoria while adrenaline and norepinephrine are responsible for the pitter-patter of the heart, restlessness and overall preoccupation that go along with experiencing love.

MRI scans indicate that love lights up the pleasure center of the brain. When we fall in love, blood flow increases in this area, which is the same part of the brain implicated in obsessive-compulsive behaviors.

"Love lowers serotonin levels, which is common in people with obsessive-compulsive disorders," said Mary Lynn, DO, co-director of the Loyola Sexual Wellness Clinic and assistant professor, Department of Obstetrics & Gynecology, SSOM. "This may explain why we concentrate on little other than our partner during the early stages of a relationship."

Doctors caution that these physical responses to love may work to our disadvantage.

"The phrase 'love is blind' is a valid notion because we tend to idealize our partner and see only things that we want to see in the early stages of the relationship," Dr. Mumby said.  "Outsiders may have a much more objective and rational perspective on the partnership than the two people involved do."

There are three phases of love, which include lust, attraction and attachment. Lust is a hormone-driven phase where we experience desire. Blood flow to the pleasure center of the brain happens during the attraction phase, when we feel an overwhelming fixation with our partner. This behavior fades during the attachment phase, when the body develops a tolerance to the pleasure stimulants. Endorphins and hormones vasopressin and oxytocin also flood the body at this point creating an overall sense of well-being and security that is conducive to a lasting relationship.

Loyola has a new Sexual Wellness Clinic, which combines the expertise of various specialists and takes a holistic approach to address common emotional and physical challenges that couples face in their sexual relationships. For more information, call (708) 216-2364.

About Loyola University Health System

Loyola University Health System (LUHS) is a member of Trinity Health. Based in the western suburbs of Chicago, LUHS is a quaternary care system that includes Loyola University Medical Center (LUMC), located on a 61-acre campus in Maywood, Gottlieb Memorial Hospital (GMH), on a 36-acre campus in Melrose Park, and convenient locations offering primary and specialty care services throughout Cook, Will and DuPage counties. At the heart of LUMC is a 547-licensed-bed hospital that houses the Center for Heart & Vascular Medicine, the Cardinal Bernardin Cancer Center, a Level 1 trauma center, a burn center, a children's hospital, Loyola Outpatient Center, and Loyola Oral Health Center. The campus also is home to Loyola University Chicago Stritch School of Medicine, Loyola University Chicago Marcella Niehoff School of Nursing and the Loyola Center for Fitness. The GMH campus includes a 254-licensed-bed community hospital, a Professional Office Building with 150 private practice clinics, an adult day care program, the Gottlieb Center for Fitness, the Loyola Center for Metabolic Surgery and Bariatric Care and the Loyola Cancer Care & Research at the Marjorie G. Weinberg Cancer Center at Melrose Park.

Trinity Health is one of the largest multi-institutional Catholic health care delivery systems in the nation. It serves people and communities in 22 states from coast to coast with 93 hospitals, and 120 continuing care locations — including home care, hospice, PACE and senior living facilities — that provide nearly 2.5 million visits annually.