DOPAMINE—People who are high on the dopamine scale tend to be curious, creative, spontaneous, energetic, restless, enthusiastic, impulsive, and mentally flexible. These are the explorers and the risk takers (personally and in business).
Individuals from populations with a highly efficient dopamine system are biased towards behavioural approach traits (Extraversion and Emotional Stability) due to higher perceived reward values, whereas individuals from populations with a less efficient dopaminergic system are biased towards risk avoidance.
Builder (Serotonin) – Builders are dominated by serotonin, a neurotransmitter that is associated with sociability and serenity.
Abstract. In men, high levels of endogenous testosterone (T) seem to encourage behavior intended to dominate--to enhance one's status over--other people. Sometimes dominant behavior is aggressive, its apparent intent being to inflict harm on another person, but often dominance is expressed nonaggressively.
Testosterone and estrogen drive lust; dopamine, norepinephrine, and serotonin create attraction; and oxytocin and vasopressin mediate attachment.
Dopamine's Effects on Libido
Increased dopamine levels in the brain correlate to an increased libido. One can increase brain dopamine levels by either increasing the actual levels, through an oral medication, or by preventing the depletion of dopamine by changing behavior.
It doesn't take a matchmaker to see where this is going: Increasing levels of dopamine = euphoria and desire = greater attraction to the object of your affection. You're “high” on love, just as a drug addict is “high” on cocaine – and you're going to want more and more.
Rose (1978) noted that testosterone is more often related to aggressive behavior than to personality measures of aggression, and Mazur (1985) suggested that testosterone is related more to dominance than to aggression.
High plasma testosterone levels have been associated with aggression, sexual behaviour and social status.
High testosterone was associated with a distinct interpersonal style that included: attachment-related avoidance, dominance, and disconnectedness. High testosterone was also associated with loneliness, and this relationship was mediated by attachment-related avoidance.
Neuroticism. Neuroticism is a personality trait characterized by sadness, moodiness, and emotional instability.1 Individuals who are high in neuroticism tend to experience mood swings, anxiety, irritability, and sadness. Those low in this personality trait tend to be more stable and emotionally resilient.
ESTPs are sometimes referred to as Dynamo personalities because of their high-energy, active approach to life.
The Adventurous, Risk-Taking Trait
Some personality traits have higher risk of addiction than others. Individuals who like to take risks and who have little impulse control around experimenting and playing with new experiences and dangerous activities are more likely to try drugs.
Some researchers believe that dopamine dysfunction may be involved in the development of borderline personality disorder (BPD). This mainly stems from studies that support dopamine's role in thinking, regulating emotions, and impulse control, all of which are impaired in people with BPD.
It's linked to some mental illnesses including depression, schizophrenia and psychosis. Having too much dopamine — or too much dopamine concentrated in some parts of the brain and not enough in other parts — is linked to being more competitive, aggressive and having poor impulse control.
Dopamine is known as the “feel-good” hormone. It gives you a sense of pleasure. It also gives you the motivation to do something when you're feeling pleasure.
Although testosterone exists and functions similarly in women and men, men have markedly higher average testosterone than women. This difference in testosterone is widely presumed to be a sex difference, that is, one that reflects maleness and femaleness caused by innate and evolved influences (3).
If you have high testosterone, you will likely have high levels of dihydrotestosterone (DHT). This is a hormone that's stronger and more potent than testosterone. When the body has high levels of DHT, it will grow more facial and body hair.
Unexpectedly, Mexican-American men had the highest testosterone level. Next, we evaluated whether the same patterns are observed during adolescence, the time of prostate maturation.
Like the general population, the rarest personality type among men is INFJ. Among men, INFJs make up just 1% compared to 2% of the general population. There are some questions about why this might be.
Oxytocin, dopamine, and serotonin have positive effects on your skin by increasing anti-inflammatory responses, repairing the skin barrier, and improving microcirculation. All of that boosts your skin's radiance and gives you a free anti-aging treatment.
Researchers have scanned the brains of people who are madly in love and found a heavy surge of dopamine, a neurotransmitter in the brain's reward system that helps people feel pleasure. Dopamine, along with other chemicals, gives us that energy, focus, and obsession we feel when we're wild about someone.
According to love biologist Dawn Maslar, the chemicals dopamine and vasopressin are vital for a man to start falling in love, whereas it's oxytocin and dopamine for women. Oxytocin, often nicknamed the love or cuddle hormone, also plays an important role in men but at a later stage.