A study by Zhang (a geneticist at the University of Michigan) and Song found different genes drive bisexuality versus other same-sex sexual behavior. Zhang and Song mined a DNA database of some 450,000 people in the United Kingdom. They concluded that the genes underlying bisexual behavior are distinct from those driving exclusive same-sex behavior and may be intertwined with a propensity for taking risks.
Let’s first address the topic of risk-taking. Studies of twins have suggested that risk-taking traits may have a genetic component. The researchers found that bisexual and gay men may share some genetic variants, but the behaviors are genetically distinct from each other. They also found that bisexual behavior was genetically correlated with a propensity for taking risks in bisexual men, but not in bisexual women. Zhang and Song noted that about 23% of that behavior seemed to be related to genetics, and the environment (which seems to be missed in most studies) may play a bigger role in determining these kinds of traits. According to DSM 5, risk-taking describes a tendency to engage in reward-seeking actions despite the possibility of negative consequences. Research suggests that risk-taking in bisexual men may include unprotected sex (which we should always consider and respect) and promiscuity, which, in my opinion is a negative term for freedom for sexual exploration. It is also interesting to note that risk taking is one of the impairments or traits involved with borderline personality disorder (BPD). In previous posts we noted a positive correlation between bisexuality and BPD which may make it a confounding variable.
So what can we take from this connection between genetics and bisexual behavior? Very little. To say risk taking is a genetic trait of bisexuality is a big stretch. Some critics note that this is a study of sexual history, rather than sexual identity. Most of the people in the data base are more than 50 years old and grew up during a time when same-sex sexual experiences were illegal and frowned upon by society at large. This tends to present a negative view of bisexuality as some kind of genetic disorder. It is more likely that the environment may be a more dominant factor of BPD and may pertain to an older generation where men had to take risks because open gay sexuality was often forbidden. Take into account that many of these bisexual men were married or in relationships with women and perhaps had children, and we begin to see the possible causes of at-risk behavior. However, the reluctance to use protection may be an entirely different factor. Coming from the AIDS generation it may be related to suicidal tendencies or some form of self-punishment for engaging in what many religions referred to as sinful behavior.
So what is the positive spin that I can generate because I am just a blogger and can take wild stabs without empirical evidence.
- Bisexuality may have some genetic connections but there is no bisexual gene per say. There may be a combination of genes that may result in a genetic predisposition, but they have to be triggered by factors in the environment before they are activated.
- This is not a curse. Bisexuality is not a personality disorder and risk-taking behavior does not have to be an impairment or trait of a personality disorder. This genetic combination may also allow us the freedom to be who we want to be and do what we want to do.
- If we are bisexuals with BPD we should seek psychological help. But we do not rely only on cognitive therapy which attempts to change how we think. The combination of bisexuality and BPD goes much deeper than just thought and behavior. It involves powerful drives and when combined with environmental influences from religion and family, it can be devastating. We may need extensive empathic therapy to get to the basis of our negative feelings so we can be free to enjoy the power of our bisexual passions.
- If we are in a heterosexual relationship, we have to be honest with our partner. Secrecy can literally kill us leading to terrible guilt and suicidal behaviors. We now live in a much more compassionate society where relationships can be more open and honest. We can open up to our partner, let them know we love them, and want to maintain the relationship. But we let them know that we also have these desires for same sex relationships. We make sure we are prepared for the consequences.
- Be honest with ourselves. Bisexuality, whether it is genetic or has been forged my environmental influences or a combination of both, it is our reality. We can gain intense pleasure from same sex relationships. We can find friends with benefits that enrich our lives. We should not settle for less. And we always engage is safe sex practices out of respect for our partners and ourselves.
Bisexual behavior genetically tied to risk-taking, controversial DNA analysis find. Rodrigo Pérez Ortega. 3 Jan 2024 (https://www.science.org/content/article/bisexual-behavior-genetically-tied-risk-taking-controversial-dna-analysis-finds Epub 2024 Jan 3.
, Jianzhi Zhang and Siliang Song..Genetic variants underlying human bisexual behavior are reproductively advantageous. Sci Adv 2024 Jan 5;10(1):eadj6958.