Home Medicine Brain study reveals a hidden cause of alcohol addiction

Brain study reveals a hidden cause of alcohol addiction

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Alcohol addiction, also known as alcohol use disorder, is a serious problem that affects millions of people around the world. It can harm a person’s body, damage relationships, and create stress for families and communities.

Many people think addiction is simply about weak willpower, but scientists now understand that the brain plays a very important role.

A report from the World Health Organization in 2018 showed how serious this issue is. Alcohol use is linked to more than 3 million deaths every year. It also contributes to about 5% of all health problems worldwide.

This means alcohol is connected to many diseases, injuries, and early deaths. Because of this, researchers are working hard to understand why some people become addicted while others do not.

A new study from the University of Warwick in the United Kingdom has provided fresh insight into this question. The research was led by Professor Jianfeng Feng and was published in the journal Science Advances. The study focused on how certain parts of the brain respond to stress, fear, and disappointment.

The human brain is made up of many different areas that work together. In this study, scientists looked closely at two important regions. One is called the medial orbitofrontal cortex.

This area is located near the front of the brain and helps us notice when something feels unpleasant or wrong. It plays a role in decision-making and helps us judge whether something is good or bad.

The second area is called the dorsal periaqueductal gray. This part sits deeper in the brain and is involved in survival responses. It helps us react when we feel threatened or scared, such as deciding whether to stay, fight, or escape from danger. Together, these two brain areas help us deal with stress and negative emotions.

To better understand how these regions work in people with alcohol problems, the researchers studied brain scans from a large group of young people. The data came from the IMAGEN study, which includes around 2,000 teenagers and young adults from several European countries, including the UK, Germany, France, and Ireland.

During the study, participants completed simple tasks while their brains were being scanned. In some tasks, they expected to receive a reward but did not get it. This created feelings of disappointment or frustration. The scientists then looked at how the brain responded to these negative emotions.

The results showed something very important. People who had alcohol-related problems showed weaker communication between the two brain areas. In simple terms, their brains were not handling stress and disappointment in the usual way. This difference may help explain why some people turn to alcohol more easily.

The researchers found two possible patterns linked to addiction. In one case, alcohol seems to reduce the activity of the deeper brain area that responds to danger.

When this happens, the brain becomes less sensitive to negative feelings. The person may mainly feel the relaxing or pleasant effects of alcohol and may not notice the harmful effects as much. This can make drinking more likely to continue.

In another case, the deeper brain area may be too active. This can make a person feel tense, anxious, or uncomfortable most of the time. To escape these feelings, they may use alcohol as a quick way to calm down. Over time, this pattern can also lead to addiction.

These findings are important because they show that alcohol addiction is closely linked to how the brain processes emotions. It is not just about personal choice. Understanding this can help reduce stigma and help people see addiction as a medical condition that needs support and treatment.

The study also offers hope for better treatments in the future. If scientists can find ways to improve how these brain areas communicate, they may be able to reduce cravings and help people recover more easily. New medicines or therapies could be designed to restore balance in the brain.

In the end, this research helps us understand that alcohol addiction is deeply connected to how people experience stress and negative emotions. By learning more about the brain, scientists are moving closer to finding better ways to prevent and treat this condition, helping people live healthier and more stable lives.

If you care about alcoholism, please read studies that your age may decide whether alcohol is good or bad for you, and people over 40 need to prevent dangerous alcohol/drug interactions.

For more information about alcohol, please see recent studies about moderate alcohol drinking linked to high blood pressure, and results showing this drug combo shows promise for treating alcoholism.

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