Australian scientists have issued a serious warning about one of the most powerful factors affecting human health — loneliness, The Guardian reported. According to them, when a person feels lonely, the brain perceives this condition as physical pain or danger and immediately triggers a defensive reaction.
When the brain’s stress mechanisms are activated, the body begins to produce more hormones such as cortisol and adrenaline. These hormones can help a person stay alert in the short term but, over time, may harm the heart, nervous system, and even the immune system.
Researchers emphasize that humans are social beings by nature. Their survival and psychological stability largely depend on interaction with others. In other words, the human brain is “wired” for cooperation, conversation, and emotional connection. Therefore, prolonged loneliness is considered an unnatural state for the brain.
Scientists note that in such conditions, a “shutdown mechanism” is activated in the brain. Even when there is no real danger around, a person feels physically threatened. This leads to chronic stress, resulting in poor sleep, reduced concentration, and worsened emotional well-being.
At the same time, social interaction and emotional support trigger the opposite process in the brain. Talking with loved ones — even a brief conversation or a smile — stimulates the production of oxytocin, a hormone that enhances feelings of calm, safety, and trust.
Experts believe that regular social contact not only improves mood but also reduces the risk of heart disease, depression, and dementia (memory loss). Even a short chat, friendly communication, or being in a group with shared interests significantly improves a person’s mental state.
The scientists reached these conclusions after studying nearly 3,000 participants of different ages. They found that people living in loneliness had twice as high levels of stress hormones, which negatively affects cardiovascular function.
Psychologists say that when a person interacts with others, brain activity becomes balanced. Therefore, lonely people are advised to talk to someone every day, attend public events, or join clubs that match their interests.
Read “Zamin” on Telegram!“Loneliness is a source of stress for the brain, comparable to physical pain. But even a few minutes of conversation can restore a sense of calm,” the researchers say.
