Bipolar disorder: the causes

Bipolar disorder affects both men and women, regardless of their social class. Its causes are multifactorial, with a strong endogenous component, ie genetic and biological.

Bipolar disorder occurs in young adults with a starting age between 15 and 40 years. More precisely, the average start age is around 20 years old. The causes of bipolar disorder would be largely genetic and biological, without ruling out the environmental causes, themselves involved in gene expression.

The relatively uniform prevalence in different cultures, the family tendency and the earlier onset of age than in unipolar depression (mania-less depression or hypomania) suggest a strong genetic component. If one of the parents has bipolar disorder, the risk of one of the children being affected is about 20%. If the father and mother have bipolar disorder, this risk rises to 50-60%. Thus, the existence of a history of bipolar disorder in the family goes in the direction of a genetic susceptibility to the disease.

However, like all psychiatric pathologies, environmental causes play a role in the onset of the disease. The existence of traumatic events or emotional deficiencies in the family or personal past, especially in early childhood, can promote the development of bipolar disorder.

These environmental causes would have an impact, only if a field of genetic susceptibility would be present. According to epigenetic theory, the existence of environmental factors (affective, infectious, inflammatory, etc.) would influence the expression of certain genes, and promote the development of bipolar disorder.

You want to react, to give your testimony or to ask a question? Appointment in our FORUMS Psychology, Analysis and Psychotherapy or A doctor answers you !

Read also :

> Borderline presidency
> Overcoming your phobias and anxiety disorders

Popular Posts

Category Diseases, Next Article

Deafness: the diagnosis - Diseases

Deafness: the diagnosis

To diagnose possible unilateral deafness or the onset of hearing loss as soon as possible, in France, newborns are screened: hearing tests directly after birth. Hearing can be verified during subsequent screening tests. Thus, it is usually possible to detect congenital deafness or acquired early enough early to treat it effectively
Read More
Asthma: therapeutic education - Diseases

Asthma: therapeutic education

The asthmatic patient must learn how to manage his illness and his asthma attacks: he will seek advice from his doctor, during a possible hospitalization or in specialized care centers. He will learn to know the warning signs of the crisis (that is to say the warning signs): the runny nose, the crying eyes, the scratching throat
Read More
Conjunctivitis: Symptoms - Diseases

Conjunctivitis: Symptoms

The symptoms of conjunctivitis are usually easy to recognize. When one suffers from conjunctivitis, one has the sensation of having sand in the eyes, these are more or less red, appear more or less inflated, the light can be troublesome, a pain can exist. When one wakes up in the morning, the eyelids are sometimes stuck by secretions (rather in case of bacterial infection)
Read More
Tuberculosis: Sources and Notes - Diseases

Tuberculosis: Sources and Notes

- UT Southwestern Medical Center. "New mechanism of tuberculosis infection." ScienceDaily. ScienceDaily, 21 July 2016 - Xiyuan Bai et al. Curcumin enhances human macrophage control of Mycobacterium tuberculosis infection. Respirology , 2016 - Tuberculosis, Aide-mémoire No. 104, October 2016, World Health Organization.
Read More