Research suggests that depression doesn't spring from simply having too much or too little of certain brain chemicals. Rather, there are many possible causes of depression, including faulty mood regulation by the brain, genetic vulnerability, and stressful life events.
There's no single cause of depression. It can occur for a variety of reasons and it has many different triggers. For some people, an upsetting or stressful life event, such as bereavement, divorce, illness, redundancy and job or money worries, can be the cause. Different causes can often combine to trigger depression.
Things like stress, drinking alcohol, using drugs, and hormone changes can affect mood and the brain's chemistry. Some health conditions may also increase the likelihood of anger, irritability, or sadness. For example, low levels of thyroid hormones can cause a depressed mood in some people.
Changes in brain chemistry, especially disruptions in neurotransmitters like serotonin, that play an important role in regulating many bodily functions, including mood, sleep, and appetite, are thought to play a particularly important role in depression.
The data available suggest that low serotonin levels do not cause depression. However, this does not mean that doctors will stop utilizing antidepressants as a treatment option. Instead, it calls for more research about why antidepressants work the way they do.
It's often said that depression results from a chemical imbalance, but that figure of speech doesn't capture how complex the disease is. Research suggests that depression doesn't spring from simply having too much or too little of certain brain chemicals.
A dopamine imbalance can cause depression symptoms, such as apathy and feelings of hopelessness, while a serotonin imbalance can affect the processing of emotions.
There is no cure for depression, but many different treatments are available to manage the symptoms. The symptoms of depression vary among individuals. A treatment plan that includes medical interventions, support, and lifestyle changes can enable a person to live a normal and full life with the condition.
Antidepressants can cause changes in neurotransmitter levels and brain function; however, these changes are typically reversible once the medication is stopped.
High-IQ people often experience social isolation, which can lead to depression or make them act more introverted than is their nature. The very intelligent know they're intelligent, so they're prone to setting lofty expectations for themselves that they can't meet.
People high in neuroticism (very emotionally sensitive) and introverts are two personality types more likely to experience negative thoughts research finds. In addition, being introverted is linked to spontaneously remembering more negative life events.
Persistent depressive disorder is a continuous, long-term form of depression. You may feel sad and empty, lose interest in daily activities and have trouble getting things done. You may also have low self-esteem, feel like a failure and feel hopeless.
Some believe it is unlikely that antidepressants cause any permanent changes to brain chemistry in the long term. The evidence seems to indicate that these medications cause brain changes that only persist while the medication is being taken or in the weeks following withdrawal.
Causes of low serotonin
age-related health and brain changes. chronic stress. a lack of exposure to natural light. lack of physical activity.
Though there is no “cure” for depression, it is treatable and symptoms can be managed. Untreated depression can be debilitating, and while in some cases your depression may go away on its own without treatment, things may get worse before they get better.
Each person's recovery is different. Some recover in a few weeks or months. But for others, depression is a long-term illness. In about 20% to 30% of people who have an episode of depression, the symptoms don't entirely go away.
Clinical depression is a chronic condition, but it usually occurs in episodes, which can last several weeks or months. You'll likely have more than one episode in your lifetime. This is different from persistent depressive disorder, which is mild or moderate depression that lasts for at least two years.
“This means that the brain structure of patients with serious clinical depression is not as fixed as we thought, and we can improve brain structure within a short time frame, around 6 weeks,” said Eric Ruhe, from Rabdoud Medical Center, Nijmegen, the Netherlands .
Exercise. Many studies show that exercise - aerobic, resistance and mind-body - all improve symptoms and severity of depression. Exercise reshapes the depressed brain, somehow activating the function of related brain areas.
Untreated depression increases the chance of risky behaviors such as drug or alcohol addiction. It also can ruin relationships, cause problems at work, and make it difficult to overcome serious illnesses. Clinical depression, also known as major depression, is an illness that involves the body, mood, and thoughts.
Low levels of dopamine can make you feel tired, moody, unmotivated and many other symptoms. Treatments are available for many of the medical conditions linked to low dopamine levels.