15 Minutes Running Helps Prevent Depression

The study showed that exercise caused lower depression risk, but depression was not linked to less exercise.

The study showed that exercise caused lower depression risk, but depression was not linked to less exercise.

Just 15 minutes of running per day is enough to significantly reduce depression risk, a genetic analysis concludes.

Alternatively, around one hour of moderate activity will do the same job.

However, any activity at all — including housework and gardening — is better than none for reducing depression risk.

The conclusions come from a genetic analysis of almost half a million people.

Dr Karmel Choi, the study’s first author, explained the key result:

“On average, doing more physical activity appears to protect against developing depression.

Any activity appears to be better than none; our rough calculations suggest that replacing sitting with 15 minutes of a heart-pumping activity like running, or with an hour of moderately vigorous activity, is enough to produce the average increase in accelerometer data that was linked to a lower depression risk.”

While more exercise has frequently been linked to lower depression risk, it is hard to determine cause and effect.

The difficulty is that people who are depressed may move around less.

So, does depression cause less exercise or is more exercise the cause of less depression?

To resolve this problem, the new study used a different method based on genetics.

Dr Karmel Choi, the study’s first author, said:

“Using genetic data, we found evidence that higher levels of physical activity may causally reduce risk for depression.

Knowing whether an associated factor actually causes an outcome is important, because we want to invest in preventive strategies that really work.”

The new conclusions are based on data from almost half-a-million people, 91,000 of whom wore wrist bands that measured their physical activity.

The study showed that exercise caused lower depression risk, but depression was not linked to less exercise.

Dr Choi and colleagues will now go on to look at who might benefit from exercise the most:

“We currently are looking at whether and how much physical activity can benefit different at-risk groups, such as people who are genetically vulnerable to depression or those going through stressful situations and hope to develop a better understanding of physical activity to promote resilience to depression.”

The study was published in the journal JAMA Psychiatry (Choi et al., 2018).

How Therapy Changes Depressed People’s Brains (M)

A new study finds further evidence that the serotonin hypothesis is not true.

A new study finds further evidence that the serotonin hypothesis is not true.

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10 Science-Backed Ways To Avoid Depression

Depression is an extremely common experience, which can be hard to escape from once an episode has begun.

Depression is an extremely common experience, which can be hard to escape from once an episode has begun.

Psychological research has found all sorts of ways that the chances of developing depression can be reduced.

From social connection, through building resilience to taking up a hobby, there are many science-backed methods for lowering depression risk.

Click the links for a fuller description of each study including the reference.

1. Social connection

Social connection is the strongest protective factor against depression.

People who feel able to tell others about their problems and who visit more often with friends and family have a markedly lower risk of becoming depressed.

The data, derived from over 100,000 people, assessed modifiable factors that could affect depression risk including sleep, diet, physical activity and social interaction.

Dr Jordan Smoller, study co-author, explained the results:

“Far and away the most prominent of these factors was frequency of confiding in others, but also visits with family and friends, all of which highlighted the important protective effect of social connection and social cohesion.”

2. Build resilience

Recalling positive memories helps to build resilience against depression.

Reminiscing about happy events and having a store of these to draw on is one way of building up resilience.

Similarly, getting nostalgic has been found to help fight loneliness and may also protect mental health.

Thinking back to better times, even if they are tinged with some sadness, helps people cope with challenging times.

3. Regulate your mood naturally

Being able to naturally regulate mood is one of the best weapons against depression.

Mood regulation means choosing activities that increase mood, like exercise, when feeling low and doing dull activities like housework when spirits are higher.

Some of the best ways of improving mood are being in nature, taking part in sport, engaging with culture, chatting and playing.

Other mood enhancing activities include listening to music, eating, helping others and childcare.

4. Eat healthily

Eating more fruits and vegetables lowers the risk of depression.

Reducing fat intake and increasing levels of omega-3 are also linked to a lower risk of depression.

The anti-inflammatory and antioxidant properties of fruits and vegetables may account for their beneficial effect.

Vitamins and minerals in fruit and vegetables may also help to lower the markers of inflammation, such as C-reactive protein.

Similarly, adding more fibre to the diet decreases depression risk.

This is probably why many studies link vegetarian and vegan diets to a lower risk of depression.

5. Stop obsessing about failures

Excessive negative thinking about unfulfilled dreams is linked to depression and anxiety.

When people repeatedly compare a mental vision of their ideal self with the failure to reach it, this can produce psychological distress.

Aspirations can be damaging as well as motivating, depending on how the mind deals with them and what results life happens to serve up.

Thinking obsessively about a perceived failure is psychological damaging.

6. Reduce sedentary activities

Cutting down on screen-time strongly reduces depression risk, whether or not people have previously experienced a depressive episode.

The results come from data covering almost 85,000 people.

The study found that another important lifestyle factor linked to less depression is adequate sleep — around 7 to 9 hours is optimal.

Again, adequate sleep improves mood even in people who have  not experienced depression.

7. Be in nature

Being in nature relaxes the mind, which in turn enhances the immune system.

This may explain why nature has a remarkably beneficial effect on a wide range of diseases including depression, ADHD, cancer, diabetes, obesity and many more.

Dr Ming Kuo, who carried out the research, explained how nature helps:

“When we feel completely safe, our body devotes resources to long-term investments that lead to good health outcomes — growing, reproducing, and building the immune system.

When we are in nature in that relaxed state, and our body knows that it’s safe, it invests resources toward the immune system.”

8. Take up a hobby

People who take up any hobbies reduce their risk of depression by almost one-third.

Pursuing hobbies increases the chance of a depressed person recovering by 272 percent.

Hobbies are usually considered informal leisure activities that are not done for money and do not involve physical activity.

Things like music, drawing, sewing and collecting would be good examples.

To be beneficial to mental health, hobbies do not necessarily need to be social.

However, some studies do find that social hobbies can be particularly beneficial to happiness.

9. Get fit

People high in aerobic and muscular fitness are at half the risk of depression.

Being fit also predicts a 60 percent lower chance of depression.

The study tracked over 150,000 middle-aged people in the UK.

Their aerobic fitness was tested on a stationary bike and muscle strength with a handgrip test.

After seven years, people who were fitter had better mental health.

Those with combined aerobic and muscular fitness had a 98 percent lower risk of depression and 60 percent lower risk of anxiety.

10. Mindfulness

Mindfulness helps to reduce depression, anxiety and stress for many people, new research finds.

However, its effects on depression and anxiety may be relatively small, with the highest quality studies finding little benefit.

The best advice is probably to try and see if it works for you, but do not be surprised if its effects on depression and anxiety are modest.

Here are some common mindfulness exercises that are easy to fit into your day and 10 ways mindfulness benefits the mind.

→ Want more suggestions? Here are 8 more everyday tools for fighting depression.

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Team Sports Lower Depression Risk

The finding was particularly strong for those who took part in structured school teams.

The finding was particularly strong for those who took part in structured school teams.

Taking part in team sports is linked to a lower risk of depression in boys, research finds.

The study of children aged 9-11 found that both boys and girls who took part in team sports also had greater hippocampal volume.

The hippocampus is an area of the brain critical for memory and other important functions.

The finding was particularly strong for those who took part in structured school teams as opposed to informal games.

Ms Lisa Gorham, the study’s first author, said:

“Our findings are important because they help illuminate the relationships between involvement in sports, volume of a particular brain region and depressive symptoms in kids as young as nine.

We found that involvement in sports, but not non-sport activities such as music or art, is related to greater hippocampal volume in both boys and girls, and is related to reduced depression in boys.”

The study included 4,191 from across the US.

Brain scans revealed the link between team sports and larger hippocampal volume.

Many studies have proven the antidepressant effects of exercise on adults, but this is the first in children.

Ms Gorham said:

“The fact that these relationships were strongest for team or structured sports suggests that there might be something about the combination of exercise and the social support or structure that comes from being on a team that can be useful at preventing or treating depression in young people.

The findings raise intriguing possibilities for new work on preventing and treating depression in children.”

The study was published in the journal Biological Psychiatry: Cognitive Neuroscience and Neuroimaging (Gorham et al., 2019).

A Blood Test For Depression And Bipolar Disorder (M)

The blood test, which is still at the experimental stage, may also help to match patients with treatments.

The blood test, which is still at the experimental stage, may also help to match patients with treatments.

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Brain Stimulation Helps 70% Fight Major Depression

Some depressed patients even experienced dramatic improvements in just a couple of weeks.

Some depressed patients even experienced dramatic improvements in just a couple of weeks.

Electrical brain stimulation produced a marked improvement in depression symptoms in 70 percent of people who took part in a recent study.

Some depressed patients even experienced dramatic improvements in just a couple of weeks.

The painless, non-invasive treatment targets a natural pattern of electrical activity in a specific part of the brain.

Most people in the study reported that their depression symptoms were reduced by at least half after two weeks.

The newer type of brain stimulation used in the study is called ‘transcranial alternating current stimulation’ (tACS).

Dr Flavio Frohlich, study co-author, explained:

“We conducted a small study of 32 people because this sort of approach had never been done before.

Now that we’ve documented how this kind of tACS can reduce depression symptoms, we can fine tune our approach to help many people in a relatively inexpensive, noninvasive way.”

All the people in the study had been diagnosed with major depression.

They were randomly divided into three groups with two of them getting a sham version of the treatment to provide controls.

The electrical brain stimulation lasted 40 minutes and was done on five consecutive days.

It targeted natural electrical oscillations in the brain called ‘alpha waves’.

Alpha waves are more predominant when people close their eyes and dream, or meditate.

Studies have suggested that depression is linked to an imbalance of alpha waves in the right frontal cortex.

Stabilising these waves, the scientists found, caused many people’s depression to lift after two weeks.

However, after four weeks, the effect of the brain stimulation appeared to have worn off.

Dr Frohlich said:

“It’s important to note that this is a first-of-its kind study.

It was unclear what would happen if we treated people several days in a row or what effect we might see weeks later.

So, the fact that we’ve seen such positive results from this study gives me confidence our approach could help many people with depression.”

The study was published in the journal Translational Psychiatry (Alexander et al., 2019).

The Depressed See This Visual Illusion Differently (M)

A new study reveals one of the more subtle changes depression makes to how sufferers see the world.

A new study reveals one of the more subtle changes depression makes to how sufferers see the world.

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How Screen Time Affects Depression Risk (M)

The study’s results show that screen time has a complex relationship with mental health.

The study's results show that screen time has a complex relationship with mental health.

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The Type Of Breathing That Fights Depression And Anxiety

Changing patterns of breathing improves mental health, concentration and memory.

Changing patterns of breathing improves mental health, concentration and memory.

Deep breathing can help reduce the symptoms of depression and anxiety, studies show.

It also has the power to increase concentration and memory.

Controlled yogic breathing has even been shown to help with severe depression.

But, it has to be done right.

Diaphragmatic breathing — colloquially known as deep breathing — involves contracting the muscles underneath the lungs.

Sometimes it is called ‘belly breathing’ because it feels like breathing from the belly.

In contrast, ‘chest breathing’ — using the muscles around the upper body — is less efficient.

Dr Melanis Rivera, a clinical psychologist who works at a student counselling centre, said:

“When you breathe with your upper chest, upper lungs, upper body, what happens is you are taking in less oxygen which is vital to your body and organs.”

This sort of shallow breathing is linked to anxiety, fatigue and muscle tension.

It can also lead to headaches and panic attacks.

Belly breathing is best done by breathing in steadily for four seconds from the diaphragm, then exhaling for six seconds.

Dr Nathaly Shoua-Desmarais, a clinical psychologist and biofeedback specialist, said:

“The misconception is the longer you suck in air the better, but it’s the longer exhalation that provides the most benefit.”

While it might seem odd that we need to train ourselves to breathe properly, Dr Shoua-Desmarais said:

“Babies use diaphragmatic breathing.

Somewhere along the way we develop bad habits that develop into thoracic breathing.”

Retraining ourselves to do something so natural, though, can prove difficult.

It is best to start with a 5-minute routine at first, said Dr Rivera:

“If you’ve been chest breathing for a good portion of your life and you suddenly tell your body, hey, let’s stretch out these lungs, you could feel dizzy or get a headache, even hyperventilate.”

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The Everyday Plant That Reduces Depression Risk (M)

Nature needs to be brought as close to people’s daily lives as possible, even in the city.

Nature needs to be brought as close to people's daily lives as possible, even in the city.

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