“During times of physical separation, when touching and caressing is impossible, a deep, longing, almost a hunger, for the beloved can set in. We are used to thinking of this longing as only psychological, but it's actually physical. The brain is virtually in a drug-withdrawal state. During a separation, motivation for reunion can reach a fever pitch in the brain. Activities such as caressing, kissing, gazing, hugging, and orgasm can replenish the chemical bond of love and trust in the brain. The oxytocin-dopamine rush once again suppresses anxiety and skepticism and reinforces the love circuits in the brain. From an experiment we also know that oxytocin is naturally released in the brain after a twenty-second hug from a partner- sealing the bond between huggers and triggering the brain's trust circuits.”

“That's what falling in love really amounted to, your brain on drugs. Adrenaline and dopamine, oxytocin and serotonin. Chemical insanity, celebrated by poets.”

“Male love circuits get an extra kick when stress levels are high. After an intense physical challenge, for instance, males will bond quickly and sexually with the first willing female they lay eyes on.Women, by contrast, will rebuff advances or expressions of affection and desire when under stress. The reason may be that the stress hormone cortisol blocks oxytocin's action in the female brain, abruptly shutting off a woman's desire for sex and physical touch.”

“Oxytocin, a hormone and neuropeptide ... plays a major role in attachment processes and serves several purposes: It causes women to go into labor, strengthens attachment, and ... [increases] trust and cooperation. We get a boost of oxytocin in our brain during orgasm and even when we cuddle -- which is why it's been tagged the "cuddle hormone." How is oxytocin related to conflict reduction? Sometimes we spend less quality time with our partner -- especially when other demands on us are pressing. However, neuroscience findings suggest that we should change our priorities. By forgoing closeness with our partners, we are also missing our oxytocin boost -- making us less agreeable to the world around us and more vulnerable to conflict.”

“Most people think love comes from the heart or soul. The heart simple pumps blood, so love can't be created there. Where is the center for what appears to be a persons soul? The brain. And what is created there Jilly? That's right-dopamine. What does dopamine do? creates feelings of love and euphoria. How do we get our brains to create more? Drugs, massage, and or sex. Boil it down and it's all just dopamine. The good news is that you can also get more dopamine pumping through your brain by skiing fast...”

“Female sexual turn on begins, ironically, with a brain turn off. The impulses can rush to the pleasure centers and trigger orgasm only if the amygdala- the fear and anxiety center of the brain- has been deactivated. The fact that a woman requires this extra neurological step may account for why it takes her on average three to ten times longer than the typical man to reach orgasm.”