1. Long-term single.

When being a free and easy "single nobleman" has become a new choice for many urbanites, a new study published in the "British Medical Journal" reminds us that your memory may be affected by long-term single life. The days passed quietly. Finnish scientists conducted a 20-year follow-up study on 1,400 participants and found that whether it was because they could not find a suitable partner, did not want to get married, were divorced or widowed, etc., the memory of long-term single people seemed to be particularly "fragile". Severe memory impairment or amnesia symptoms are likely to occur later, and the risk of Alzheimer's disease is also higher. On the contrary, being in a happy marriage or relationship can help maintain memory. Researchers said that in married life, communication and interaction between husband and wife can not only exercise the brain unconsciously, actively stimulate memory development, but also fill in "memory holes" for each other.

2. Excessive obesity.

Obesity is one of the important factors threatening human health. Not only can it easily lead to diabetes, heart disease, etc., the latest research has also found that obesity is also closely linked to memory loss. According to a study published in the Journal of the American Geriatrics Society, researchers from Northwestern University conducted a survey of 9,000 elderly people aged 65-79 and found that the heavier a person is, the more likely they are to develop memory impairment in middle-aged and older people. And under the same weight, people with a "pear-shaped" body (excess fat in the buttocks and thighs) are more likely to have memory problems than people with an "apple-shaped" body (excess fat in the waist and abdomen). Researcher Dr. Diana Kewen explained that on the one hand, fat releases hormones called cytokines, which can interfere with memory ability and other intellectual activities; on the other hand, obesity may be related to lack of exercise, which puts the brain in a state of In a "lazy" state of unwillingness to move, which in turn affects memory.

3. Rely on Internet search engines.

Memory is a process of "use it or lose it", but since the computer's file retention function and Internet search tools have become available, many people's brains have begun to become "lazy". Cognitive psychologists Elizabeth Sparrow and Daniel Wegner from Columbia University, Harvard University, and the University of Wisconsin conducted an experiment in which participants entered a bunch of trivial messages into a computer. Half of the people were then told that the messages would be deleted, while the other half were informed that the messages would be permanently saved on their computers. It was found that people who thought the messages would be deleted scored 40% higher on average when recalling the messages. In other words, when people understand that Fang Li can get the information they want, the brain will unknowingly "delete" these memories.

4. Being influenced by others.

Human memory is not simply an individualized activity, but is constantly changing under the influence of people around you. A study jointly published in the authoritative journal Science by neuroscientists from the Weizmann Institute of Science in Israel and the University of London in the UK showed that when people recall past events, they are generally easily influenced by those around them, especially those who have experienced similar experiences to themselves. interference from peers. Even if the answer chosen by the partners is wrong, 70% of the people will choose the wrong answer against their will and even suspect that they have remembered it wrong; even if they are told that they can modify the answer, 40% of the people will still firmly "maintain the original judgment". Therefore, a deviation in one person's memory is likely to affect a group of people.

5. Advertising stimulation.

Research has found that when an advertisement constantly reminds you that you have experienced a certain scene in the past, even if it has never happened, about 1/3 of people will "naturally" think that they have actually experienced it. Live this kind of thing. This is because human memory is not static. It can undergo "memory reconstruction" in the process of the brain acquiring new information. Elizabeth Loftus, an authoritative expert in the field of memory research and professor of psychology at the University of California, even reminded everyone that in the future, people may use this characteristic of the human brain to directly create and implant false memories.

6. Improper use of birth control pills.

Many people know that birth control pills have certain side effects, but few people understand that it can even affect memory. A study published in the journal Psychopharmacology found that inappropriate use of birth control pills may have an impact on women's memory. Women taking oral contraceptive pills were significantly less able to remember details than women who were not using any drugs. When recalling an event, their reaction will be slightly sluggish. They may only vaguely recall the general scene, but easily forget the details that happened. Researchers say birth control pills can affect women's estrogen and progesterone hormone levels, and these two hormones are closely related to logical memory ability.