June 25, 2022

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The Lancet: Why does sitting for a long time easily lead to depression?



 

The Lancet: Why does sitting for a long time easily lead to depression?

In modern society, factors such as fast-paced life, high work pressure and little entertainment time cause anxiety and negative emotions to spread like weeds.

Depression, a mental illness, is becoming more and more common among the general population.

 

Depression, also known as depressive disorder, is the main type of mood disorder, which is characterized by significant and lasting depression.

Clinically, it can be seen that the mood is low, emotional depression, inferiority, depression, and even pessimism, and some patients may have suicide attempts or behaviors.

 

There are two main reasons for gaining weight during the holiday season. One is to eat well, but to move less. Everyone is more aware of the health risks of obesity.

Less activity will not only lead to obesity, but also affect mental health.

 

A study published in the leading international medical journal Lancet Psychiatry showed that sitting for a long time increases the risk of depression in young people.

 

The Lancet: Why does sitting for a long time easily lead to depression?

 

Identifying changeable risk factors is the key to reducing the prevalence of depression in adolescents.

Questionnaire survey data indicate that physical activity and sedentary behavior may be related to the occurrence of depressive symptoms in adolescents. As a result, the research team investigated the correlation between the two.

 

Researchers collected relevant data on 4257 adolescents. These adolescents have participated in a children’s survey study conducted by the University of Bristol in the United Kingdom in the 1990s.

Therefore, the completeness, contrast and reliability of the data are very high. . At the age of 12, 14, and 16, these teenagers wore accelerometers for at least 10 hours to track their movements for at least 3 days.

 

The Lancet: Why does sitting for a long time easily lead to depression?

 

The accelerometer reported that these teenagers were active or sedentary. Activities could be divided into light activities (such as walking, playing a musical instrument, or painting) and physical activities (such as running or cycling). This recording method is more objective and reliable than previous questionnaires.

At the same time, the researchers also recorded whether the 4257 adolescents had depression symptoms (such as low mood, loss of fun, and inattention) and their severity through questionnaire surveys.

 

The Lancet: Why does sitting for a long time easily lead to depression?

 

Between the ages of 12 and 16, the overall total physical activity decreased, mainly due to a decrease in light activity (from an average of 5 hours and 26 minutes to 4 hours and 5 minutes) and an increase in sedentary behavior (from an average of 7 hours). 10 minutes increased to 8 hours and 43 minutes).

 

Researchers found that at the age of 12, 14 and 16, if you sit for 60 minutes a day, the risk of depression increases by 11.1%, 8%, and 10.5% by the age of 18.

 

In addition, those adolescents who were sedentary in all three age groups had a 28.2% higher risk of depression at the age of 18. In contrast, at the age of 12, 14, and 16, adolescents who added an hour of light physical activity a day had a decrease in depression scores of 9.6%, 7.8%, and 11.1% at the age of 18.

 

The Lancet: Why does sitting for a long time easily lead to depression?

 

The study’s lead author Aaron Kandola said: “It’s worrying that over the years, young people’s sedentary time has been steadily increasing, but what’s even more surprising is that we lack high-quality studies to report whether this is right.

Mental health has an impact. The number of young people suffering from depression seems to be increasing. Our research shows that these two trends may be related.”

 

Professor Joseph Hayes, the corresponding author of the study, said: “Light activity may be particularly useful because it does not require too much effort and is easily integrated into the daily lives of most young people.

Schools can integrate light activities into students’ daily lives. Medium, such as standing or active courses.”

 

All in all, this study by University College London in the United Kingdom shows that the amount of activity during adolescence (12-16 years old) is negatively correlated with the risk of depression at the age of 18. Sitting for a long time will increase the risk of depression in adolescents to a certain extent. risk.

 

The Lancet: Why does sitting for a long time easily lead to depression?

 

Therefore, even if the National Day holiday is long, there must be more activities. Finally, I wish you all a happy National Day.

 

 

Paper link:
https://doi.org/10.1016/S2215-0366(20)30034-1

The Lancet: Why does sitting for a long time easily lead to depression?

(source:internet, reference only)


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