“Is your posture okay now?”
From children to adults, it will completely change the 'bad posture' habits of modern people.
The 'correct posture' solution from Korea's first posture expert.

With over 40 million cumulative views on YouTube, he has emerged as the 'most sought-after health broadcaster' and is known as 'Korea's first posture expert' and a rehabilitation exercise specialist.
A 'proper posture evangelist' who has given over 1,400 lectures at Samsung, SK, the Ministry of Health and Welfare, and various educational institutions.
He has dedicated himself to teaching people, from children to adults, by running around in various fields for 18 years to correct bad posture habits, and has published a book, "If you straighten your posture, your life will straighten out," which is the culmination of all his know-how.


As we live busy and intense daily lives, more and more people, both children and adults, are unaware that their bodies are becoming increasingly trapped in a 'prison called bad posture.'
We live with discomfort and pain, big and small, due to the unbalanced posture that has become ingrained in our daily lives. However, it is common to try to dismiss it as not a big problem or to only try to relieve the pain that is apparent, which only makes the situation worse.


"If You Straighten Your Posture, Your Life Straightens" is a friendly guidebook for those who live with this very problem, helping them recognize the root cause of their unconsciously bad postural habits and providing step-by-step instructions on how to correct them.
Starting with checking how bad your posture is, you can train yourself on correct walking, sitting, and sleeping postures, and even learn simple exercises and correction methods that can be easily implemented in your daily life according to your problem.

One day, people fell to the floor with a snapping sound from their waists and complained in unison that they could not move.
It was the body's last warning to prevent the worst from happening, as further movement could cause serious damage to the back.
At this point, even with treatment, recovery takes a long time.

People with herniated discs have to hold their backs even on clear days, and no matter what they do, the pain stays right next to their back and makes their nerves tense.
The continued pain causes me to frown more and more.
Even when meeting strangers, instead of smiling, they maintain a blank expression to suppress their pain.
All of our daily lives are taken over by pain.

--- p.5

Health can never be given to you by others.
A professional can teach you the right exercises to help reduce pain, but ultimately, your muscles need to move themselves to become stronger.
No abs without sit-ups, no back muscles without extension exercises.
There is no strong spine without good posture.
The saying, 'God helps those who help themselves' also applies to health.
Health protects those who protect themselves.

--- p.10

Most musculoskeletal pain I've seen comes from bad habits.
People with neck pain always had to turn their heads when working because the monitor was tilted to the right, and people with wrist pain had to repeat the work with their wrists bent.
People with back pain sat in chairs and used computers for more than 8 hours a day, and people with hip pain had the habit of sitting with their legs crossed.
When I fixed all these bad habits, the pain went away.

Current pain can be treated with injections and medication, but future pain must be managed with proper posture and exercise.
No matter how well you receive treatment at a hospital, it will be of no use in the long run if you do not correct your bad habits, such as bad posture and lack of exercise.
--- p.21

Maintaining one posture for a long time causes stiffness around the joints and stiffness in the muscles and tendons.
Even if you want to straighten your body, you will not be able to do so.
Movement becomes more difficult and posture worsens.
As frozen shoulder occurs throughout the body, it becomes difficult for the body to recover on its own.
Posture experts describe this condition as "the body being trapped in a bad posture prison."
The moment I am trapped in the prison of bad posture, my body can no longer move freely as I wish.
Even if I want to take a plate from the cupboard, my arms won't lift, and even if I want to walk with my back straight, my back won't straighten as I want.
Eventually, my body ceases to be my body.

--- p.38

One of Mr. L's most notable habits was his habit of twisting his neck.
My neck was sore and stiff, so I held my head with my hands and twisted my neck while working.
As I mentioned earlier, this is a very bad habit for your throat health.
Even if you twist your neck, the hardened part will never loosen.
Rather, a stiff neck is more likely to cause damage to the disc where the 4th and 5th vertebrae meet.
This was a situation that worsened the initial symptoms of the disc that Mr. L was diagnosed with.
I needed to stop my bad habits and switch to safe stretching as soon as possible.

--- p.186

The worst habit that harms your shoulder health is, by far, keeping your shoulders tense.
Shoulders are sensitive to stress.
It acts like a kind of stress sensor.
Even small amounts of stress can easily cause your shoulders to tense up.
So if you want to know whether someone is stressed or not, just look at their shoulder posture.
If your shoulders are even slightly raised, it means you are tense.
No matter what expression a person makes or how they speak, the posture of their shoulders tells us something about their state of mind.

--- p.232

The curve of the lower back is originally designed to absorb shock when walking, running, and moving.
As with all tissues in the human body, if the waist is not used, it loses its function and its structure becomes distorted.
If you sit still and don't move, your back muscles will weaken and your joints will become stiff.
When you add to this the habit of hunching your back, your back becomes more deformed and straighter.
As it gets worse, it eventually takes the shape of an inverted C.
During this process, tissue damage, inflammation, necrosis, and pain occur due to muscle weakness, unstable joints, and herniated discs, which is what we commonly refer to as back pain.

--- p.261

The most noticeable change that occurs when you straighten your posture is the relief of chronic pain.
Many people suffer from musculoskeletal disorders that affect their muscles, bones, and joints due to poor posture.
These include headaches, dull aches, stiffness, knots, tension, numbness, and tingling.
If you straighten your posture, you can solve many problems related to this.
Chronic neck and shoulder stiffness is reduced by correcting forward head posture.
Lumbar disc herniation, commonly known as a herniated disc, is best treated with the habit of maintaining a good posture.
Of course, improving posture won't cure all musculoskeletal problems, but simply improving posture can relieve countless chronic pains that can't be treated with injections or medication.
People who have regained their health through posture correction are amazed at how their bodies improve with just simple habits.
Even though there was such an easy way, I regret wasting time running around trying to solve the pain.

--- p.314

Muscles represent choices in life.
Muscles are the only body tissue that can contract and relax at will.
Healthy muscles protect your body from the risk of injury, such as falls and arthritis.
It also reduces the risk of chronic diseases such as high blood pressure, diabetes, and heart disease.
It also strengthens your joints so you can work longer.
You can have fun playing with your kids or cook a delicious meal for your loved ones.
You will be more willing to give up your seat to an elderly person on the subway and more tolerant of others who carry their heavy luggage.

Good muscles lead me to the life I choose, bad muscles lead me to the life I don't.
There are three ways to build good muscles.
Maintaining good posture habits and exercising regularly are the first, eating a balanced diet including protein is the second, and getting enough sleep and rest is the third.
This book is the first story.

--- p.316