As scientists study the human brain and mind more deeply, we are gaining clues about the biology of love—why we are attracted to someone, why we fall deeply in love, and what keeps a relationship going.
He is analytical and goal-oriented but not very expressive or consistently empathetic. She is sociable, intuitive, imaginative, warm, and compassionate. They may seem like an unlikely couple, but there is another perspective.
Dr. Helen Fisher, a cultural anthropologist at Rutgers University and an expert on love and attraction, says they may be a good match. Her research has found that biology plays an important role and that their biochemical "profiles" may complement each other well.
In recent years, Fisher and other researchers have used advanced imaging and genetic analysis to study the mind and brain. They have explored why we are attracted to someone, why we fall deeply in love, how passion shifts to comfort, and what sustains attraction.
The biology of love: Why biology matters
Fisher notes that biology plays an important role in whom we find attractive. Attraction is shaped not only by similar socioeconomic status, education, and family background, but also by hormones—especially profiles that differ from and complement our own. For example, a person with high estrogen levels may be attracted to someone with a high-testosterone profile.
The biology of love: The brain in love
According to Fisher's research, love involves three basic brain systems: sex drive, romantic love, and attachment. Sex drive motivates us to seek a partner; romantic love produces the exhilaration of new love; and attachment is a comfortable stage with less intensity.
Fisher and other researchers used functional magnetic resonance imaging (fMRI) to scan the brains of people in love. They found strong activity in two regions associated with reward and motivation. This suggests that intense romantic love is more a motivational system than an emotion.
The biology of love: The role of smell
In addition to biology and brain activity, body odor plays an important role in attraction and romantic behavior. Fisher notes that human body odor is determined by a group of genes that regulate the immune system, and people tend to seek partners whose MHC differs from their own.
The biology of love: Why behavior matters
Once we are attracted to someone, their behavior also matters. People tend to be more attracted to those who are attracted to them. Research shows that when we realize someone is interested in us, we may begin to develop feelings for them.
The biology of love: From passion to comfort
As a relationship deepens, activity in the brain's reward regions decreases while connections form with new emotion-related regions. Although romantic love changes over time, "chemistry" can persist. Fisher's newer research suggests that some people in long-term marriages continue to show activity in brain regions associated with romantic love and attachment.
The biology of love: Lasting love
Avoiding boredom is important to relationship health. Research has found that couples who participate in exciting but moderately enjoyable activities experience greater gains in marital satisfaction. Choosing a partner with different MHC genes may also benefit long-term relationships. Studies suggest that women whose partners have different MHC genes show stronger sexual responsiveness and less attraction to other men.
The biology of love: The role of chemistry
Although chemistry plays an important role in romantic love, it is not the only factor. Personality, character, and temperament also shape relationships. Chemistry can sometimes dominate, but educational background and upbringing are equally important.
Much remains unknown about the biology of love, and future research will continue to reveal more.
Guide | The Biology Behind Being "Crazy in Love"
Guide | The Biology Behind Being "Crazy in Love"
As scientists study the human brain and mind more deeply, we are gaining clues about the biology of love—why we are attracted to someone, why we fall deeply in love, and what keeps a relationship going.
He is analytical and goal-oriented but not very expressive or consistently empathetic. She is sociable, intuitive, imaginative, warm, and compassionate. They may seem like an unlikely couple, but there is another perspective.
Dr. Helen Fisher, a cultural anthropologist at Rutgers University and an expert on love and attraction, says they may be a good match. Her research has found that biology plays an important role and that their biochemical "profiles" may complement each other well.
In recent years, Fisher and other researchers have used advanced imaging and genetic analysis to study the mind and brain. They have explored why we are attracted to someone, why we fall deeply in love, how passion shifts to comfort, and what sustains attraction.
The biology of love: Why biology matters
Fisher notes that biology plays an important role in whom we find attractive. Attraction is shaped not only by similar socioeconomic status, education, and family background, but also by hormones—especially profiles that differ from and complement our own. For example, a person with high estrogen levels may be attracted to someone with a high-testosterone profile.
The biology of love: The brain in love
According to Fisher's research, love involves three basic brain systems: sex drive, romantic love, and attachment. Sex drive motivates us to seek a partner; romantic love produces the exhilaration of new love; and attachment is a comfortable stage with less intensity.
Fisher and other researchers used functional magnetic resonance imaging (fMRI) to scan the brains of people in love. They found strong activity in two regions associated with reward and motivation. This suggests that intense romantic love is more a motivational system than an emotion.
The biology of love: The role of smell
In addition to biology and brain activity, body odor plays an important role in attraction and romantic behavior. Fisher notes that human body odor is determined by a group of genes that regulate the immune system, and people tend to seek partners whose MHC differs from their own.
The biology of love: Why behavior matters
Once we are attracted to someone, their behavior also matters. People tend to be more attracted to those who are attracted to them. Research shows that when we realize someone is interested in us, we may begin to develop feelings for them.
The biology of love: From passion to comfort
As a relationship deepens, activity in the brain's reward regions decreases while connections form with new emotion-related regions. Although romantic love changes over time, "chemistry" can persist. Fisher's newer research suggests that some people in long-term marriages continue to show activity in brain regions associated with romantic love and attachment.
The biology of love: Lasting love
Avoiding boredom is important to relationship health. Research has found that couples who participate in exciting but moderately enjoyable activities experience greater gains in marital satisfaction. Choosing a partner with different MHC genes may also benefit long-term relationships. Studies suggest that women whose partners have different MHC genes show stronger sexual responsiveness and less attraction to other men.
The biology of love: The role of chemistry
Although chemistry plays an important role in romantic love, it is not the only factor. Personality, character, and temperament also shape relationships. Chemistry can sometimes dominate, but educational background and upbringing are equally important.
Much remains unknown about the biology of love, and future research will continue to reveal more.
Source:
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