Is it bad for a car to stand still for a long time? How to avoid leg problems when standing all the time How long can you sit

Doctors do not tire of reminding you that sitting all day (not so important, at the computer, at your desk, or on the couch after work) is extremely dangerous for your health. This is associated with an increased risk of developing diabetes, various kinds cancer and an approximately two-fold increase in the risk of disease. But why is all this happening? A recent study, writes Business Insider, may shed light on this dark history.

It turns out that constant sitting is associated with the accumulation of certain proteins called troponins, which are released by heart muscle cells when they are damaged. It is their surge (read: a sharp increase in the number) in the blood that doctors begin to look for when diagnosing a heart attack in a patient.

In the course of the study, scientists found that people who sit for more than 10 hours a day (not too difficult a task for a person who is 7-9 hours) do not boast normal level troponins. The numbers were not high enough to qualify the participants as having an injury level of , but the researchers nonetheless referred to a condition known as subclinical cardiac injury.

If a elevated level troponin persists for long period, a person has serious problems with health, which may explain why inactive people die more often (especially from heart and vascular diseases) compared to those who lead.

Scientists made the discovery by analyzing data from participants in the Dallas Heart Study, an ongoing study of heart health in Dallas County's multiethnic population. They looked at study participants at the start and end of the week, measuring troponin levels and tracking physical activity with .

It is worth saying that this was the first study on the connection between a sedentary lifestyle and troponins. But the results, however, still do not state that excessive sitting will necessarily lead to heart problems. They only show that people who sit a lot and move little tend to have more (sometimes minor) heart problems than those who do the opposite.

"The other side of the coin is what you don't do while you're sitting," study lead author James de Lemos tells the New York Times. If you're not sitting, you're more likely to be moving, which certainly helps. But it is still not clear whether they can counteract negative consequences seats.

Among study participants who sat for long periods of time but exercised, there seemed to be some effect. However, scientists warn, the key to success here will be precisely the reduction in the amount of time spent in a sitting position. A major study published in 2016 in the Lancet found that people who sat more than 8 hours a day but exercised for at least 60-75 minutes a day had the same health risks as people who who sat twice as much and did the same amount.

If you are reading this article while sitting, by the middle of the text you will want to get up, and by the end you will want to do important step to more healthy lifestyle life.

If you are reading this article while sitting, you will want to get up by the middle of the text, and by the end you will want to take an important step towards a healthier lifestyle.

In recent decades, humanity has sat up. For example, in the USA, where it is especially honored to sit at work until late, they write about the average 10 hours spent in the office per day.

And an ordinary Briton, according to scientists spends 14 hours 39 minutes in a sitting position. In addition to directly working in the office (or working time at computers at home), an average of 2.5 hours a day is spent watching TV and sitting at a computer.

In general, we sit for about 75% of office time, and everything is aggravated by the fact that the periods of “staying” are mostly quite long - more than 30 minutes, which is very, very unhealthy.

The Science of Sitting: 8 Proven Consequences

In general, the first evidence that sitting for a long time is very unhealthy appeared relatively recently: in the 1950s.

Then British scientists compared data on coronary insufficiency in bus drivers (they sit all the time) and conductors (they are constantly on their feet). Both professions in Britain attracted people of similar age and physical condition people and data were adjusted for sex and age, and this gave some semblance of objectivity of the analysis.

Scientists' conclusion: among conductors, the incidence of heart disease was markedly lower than among drivers.

1. Prolonged sitting leads to overweight

The conclusion of scientists is quite obvious: among people who work while sitting, cases of obesity are noticeably more common. It is estimated that over the past 50 years, since most jobs have become sedentary, in the US, the average American has been consuming 120-140 calories less per day.

2. Increased risk of heart attack

A large-scale study covering more than 17 thousand people and lasting more than 13 years showed that Sedentary people are 54% more likely to die from a heart attack.

3. Increased risk of chronic disease

A study of more than 63,000 Australians found that men who sat more than 4 hours a day were significantly more likely to suffer from chronic diseases - in particular heart disease and diabetes - confirming both of the previous points.

4. Reduced life expectancy

Scientists examined data on television viewing on 11,000 people from the Australian Bureau of Statistics and found that people who sit in front of the TV for 6 or more hours a day, on average, live 4.8 years less than those who do not watch TV at all.

And another figure from the same study: every hour spent sitting in front of a blue screen after the age of 25 reduces life expectancy by 22 minutes.

5. Increased risk of dying from cancer

According to some data, people who spend a lot of time in a sitting position increase the risk certain types cancer up to 66% compared to those who do not abuse sitting.

One study also reported that a sedentary lifestyle increased the risk of endometrial cancer by 32%, a 24% increase in the risk of colorectal cancer and a 21% increase in lung cancer.

Every extra 2 hours of sitting a day adds up to an 8% risk of getting colorectal cancer.

6. Increased risk of kidney disease

In a 2012 study, scientists found a link between kidney disease and a sedentary lifestyle. For example, among women who spend less than 3 hours a day in a sitting position, the risk of chronic kidney disease is as much as 30% lower.

7. Sitting is bad for mental health

Women who continued to predominantly sit outside of work in a 2012 study reported mental health problems.

8. People with handicapped more common among sedentary people

The scientists who conducted the study found that every hour spent sitting, people aged 60 years and older was associated with a 50% greater likelihood of becoming disabled.

Dr. James Levin, in his book Get Up!: Why Your Chair is Killing You and What You Can Do About It, concludes that long sitting even more dangerous than smoking, kills more people than HIV. “We sit up to death,” he scares readers with conclusions based on scientific facts.

Can the risks of sitting be reduced by being physically active?

New York experts compiled the findings of scientists: it does not matter if you run every day or go to the gym regularly - it does not save you from the risks of long sitting. If you spend a lot of time sitting - at work in the office, in the car, on the couch - you take on increased risks of cancer, heart disease, kidney disease and generally shorten your life.

Dr. Graham Colditz of the Washington University School of Medicine urges people to know that physical activity and long sitting are two different things:

“People don’t talk about long periods of sitting as much as they do gym workouts and jogging, and they should!”

How long can you sit?

People in general began to move rather little and stay longer. According to WHO, only 5% of people in the world fulfill the recommended minimum norm: study physical activity 5 times a week for at least 30 minutes.

And this is the minimum bar: in general, experts recommend gradually reducing the proportion of sitting and at least half of the working time in a certain activity: walking or just standing.

But even here you need to know the measure and not fall from one extreme to another. Experts also recommend not standing for more than 5 hours a day. Working standing for a long time causes joint pain, swelling, poor blood circulation and fatigue.

Sit, stand, or both?

Gavin Bradley, Head international group Active Working promotes reduced sitting time. Bradley himself has radically changed his approach to work, he starts his working day standing on a comfortable mat in front of a work computer. Every 30 minutes, according to the timer, Gavin changes position from standing to sitting and vice versa.

Some companies are motivating employees to walk more (and be healthier and more efficient) by placing water coolers farther away and even removing individual trash cans, encouraging them to walk to the central one.

• Move more often on foot.
• Do not rush to get on public transport.
• Walk around the office to a colleague instead of calling him.
• Conduct work meetings standing up.
• Get up when talking on the phone.
• Take a walk during your lunch break, eat lunch outside the office.
• Use the stairs instead of the elevator and escalator.
• Take breaks during work and do a simple workout.
• Work at your computer while sitting/standing.

Work standing

Today, many advanced employers provide their employees with the opportunity equip a standing place for work .

In addition to getting rid of many potential health problems Alternating between sitting and standing provides several other important benefits.

1. Burn more calories

Standing burns about 35% more calories than sitting. And as you know from the law of energy balance, this is a key factor for losing weight or maintaining weight.

3 hours of standing work during the day burns about 150 kcal (the exact figure depends on your personal characteristics).

So if you change your lifestyle and spend on your feet 3 hours during the working day, you can additionally burn about 4500 kcal per month- according to the law of energy balance, all other things being equal (if you continue to eat and spend calories the rest of the time) this will allow you to reduce weight by about 0.6 kg per month.

In a year, you can burn up to 35,000 kcal - this is like running a marathon 10 times (that is, fulfilling the marathon norm almost every month), swimming the Bosphorus 39 times and climbing Elbrus 5 times.

2. Posture and muscle tone

UC Berkeley professor Galen Krantz writes that sitting - an absolutely unnatural position of the body. People are not adapted to long sitting by nature.

The spine is not designed to carry long time in a sitting position. The S-shaped spine allows you to withstand high loads, and in a sitting position, the S turns into a C, which almost blocks the abdominal and back muscles that support the body.

The man stoops, oblique and lateral muscles the abdomen weaken and without regular training they can no longer cope with the support of the body. When standing, the load on the back is halved, and the muscles of the legs and abs are in good shape.

When you sit, the entire load is transferred to the pelvis and spine, increasing pressure on intervertebral discs. MRI shows that even with correct posture(which succeeds rare people and not all the time) sitting puts a lot of pressure on your back.

3. Productivity

From the point of view of science, this issue is still controversial. Some experts and studies report a 15% increase in efficiency when standing.

And in a recent study by Texas A&M University, which lasted 6 months, they generally counted increase in the efficiency of call center employees by 46% when working at tables with height adjustment.

However, to be fair, there are also studies that have not found any increase in performance when standing.

Jack Callaghan, a professor at the University of Waterloo, analyzed 8 scientific sources on standing and productivity. He did not get unequivocal conclusions: 3 studies indicated an increase in productivity, another 3 did not find any effect, and one contained mixed results.

It is assumed that the effectiveness of standing is also related to the nature of the activity itself. The Latvian startup incubator Draugiem Group compared standing and sitting work performance using its own DeskTime app. Productivity increased in simple tasks, where the main thing is to “get it and do it”. A standing person is more focused and less distracted.

4. Standing Solutions

In the same Ikea there is "Skarsta" - a table with adjustable table top height. Turn the handle and set the height you need - from 70 to 120 cm.

Skarst table

There are inexpensive solutions for working on the basis of the table you already have, for example, the domestic Surikatus. Samo workplace surprisingly easy to build: enough for 20 seconds, and if necessary - disassemble and carry away - it weighs less than 5 kg. The stand will fit on any table, and the height of the tabletop to suit your height is easy to adjust.

Surikatus is easy to customize by choosing a comfortable hand position (There is a wide shelf for the mouse and keyboard, which gives support for the wrists). And what is no less important - when working with the stand, the correct position of the head is maintained (this is very important for the prevention of "text neck".

With "Surikatus" you can work on a laptop with a straight back both sitting and standing, thanks to a removable stand for sitting.

Stand "Surikatus"

How to set up your desk for standing work

Pay attention to the picture: the optimal height of the tabletop is the beginning of the biceps (with the arm lowered) or, more simply, the tabletop should be slightly below elbow level.

Pay attention to the angle of the monitor. If you are reading a book - then on the corner of the tabletop. Desk work also has a beneficial effect on vision, since a working angle of 15-17 ° is more effective for the eyes than a horizontal surface. This fact was verified and approved by the Research Institute of Eye Diseases. Helmholtz.

Stay healthy!

We are almost sure that if you got to these words, we convinced you of the need to switch to alternating between sitting and standing work. Don't delay, don't forget, and don't give up on this important information. Live healthier and prolong your life!published . If you have any questions on this topic, ask them to specialists and readers of our project .

P.S. And remember, just by changing your consciousness - together we change the world! © econet

The vehicle has been in your garage for a long time or even been outside in winter and summer, in heavy rain, under a thick layer of snow. To find the correct answer to the question - what to do if the car has been standing still for a long time. You must first find out what happens to her if she is inactive for a long time.

Is it bad for the car to stand for a long time

The car is not affected by time. It is affected by the conditions that surround it during a long stop. As you know, the main part of the car consists of metal. Despite all the efforts of manufacturers, it is not possible to finally defeat corrosion, especially for old rare models.

During operation, during impacts and for other reasons, the paint can crack, fly around, which exposes the metal, making it easy prey for corrosion. If the car stays in conditions of high humidity for a long time, it begins to rust, especially the body, the supporting part of the entire car. People say that in this case it “rots”, and at the same time the body loses the necessary rigidity, its main function of protecting the car is weakened.

Important! The consequences of the impact of this "villain" can be so detrimental that they even exclude the possibility of operation or repair on the basis of the old body.

So, if the car has been standing in the yard for a long time, having decided to bring it into working condition, first of all, carefully inspect the body.

But the bad consequences of car downtime do not end there. A car is a whole system of mechanisms, various devices and units that are designed to stay in motion, withstand power loads, etc. The developers and designers of the car think through all its components, taking into account the fact that the car will constantly or at least periodically be in motion.

A running engine sets in motion all its mechanisms, intensive lubrication of the rubbing parts occurs, which also prevents their rusting, oil does not stagnate in the crankcase. During the operation of the brake system, entering the liquid chemical elements do not allow the seals to dry out and crack. Bearing elements receive the necessary power load, perform one of their functions - to resist it.

Therefore, the answer to the question - what will happen if the car is standing for a long time, is simple - it gradually loses its performance properties. This happens regardless of where she was - she stood for a long time in the garage or on the street. Movement for her is the main component of a healthy state, all components, assemblies and systems of the car must function. Otherwise, time will pass, and costly repairs will be required to bring it into working condition.

What to do if the car has been idle for a long time

First of all, to carry out its detailed inspection, to carry out diagnostics. If the inspection can be carried out independently, then diagnostics cannot be done without the appropriate equipment and a qualified specialist.

You also need to check the level and presence of all fluids in auto systems:

• brake;
• lubricating;
• cooling.

Inspect everything for signs of corrosion and damage, especially soft non-metallic parts. Check the operation of the drive mechanisms, door handles, hood lever. Press the brake pedal and try to move the car, turn the ignition key and look at the panel to see if the power supply indicators light up, etc. If the car has been standing for a long time with the ignition on, it is necessary to check the battery, is there still a charge in it? If the car has been on the handbrake for a long time, you need to try to remove it from it. But this must be done carefully so as not to break or harm anything. See if the mechanism is rusted, if the cable is loose, lubricate and tighten if necessary.

Advice! If the brake system is not working well, then you need to check the fluid level in the system. Are there any leaks, if necessary, change the failed elements and upload it.

If, after you started the engine, the oil level has risen, then it is worth checking to see if gasoline or other liquids are getting into the crankcase. Check all seals, gaskets for tightness and throughput, possibly sunk rings on pistons, etc.

If you want to know the opinion of experts, watch the video:

How to start a car after a long period of inactivity

If the car has been in the garage for a long time, there will be less hassle when restoring its performance, because it did not succumb to the intense effects of moisture. First of all, it is necessary to change the old oil in the engine, which, most likely, has exfoliated. You also need to change the gasket and seals, put a new battery. Check the cooling system fill it with water or other coolant.

After that, pouring gasoline into the tank, pumping it into the carburetor with a pump, you can try to start the engine. If the question is still relevant - how to start a car that long time has not been used, should be complete diagnostics motor. Check the carburetor for operation, clean the jets if necessary, check the mixing chamber, etc. A complete disassembly of the engine may be required, since if the car has been standing for a long time, it is likely that rust has appeared somewhere that needs to be removed. In addition, it will be necessary to lubricate all components and assemblies, check the crankshaft, cylinder liners, change rings, liners, in general, produce overhaul engine.

All major breakdowns and malfunctions that are still in the car will be visible with the engine running. This will allow you to check the clutch, gearbox, running gear, the operation of electrical equipment, for example, whether the lights are on, the headlights switch from low beam to high beam.

Checking the gearbox

If the machine has been parked for a long time, the gearbox oil may have lost its performance. Therefore, when shifting gears, you need to listen: does a metallic sound come from there, do you hear a rattle or other signs of malfunctions. If they are, it is necessary to sort out the gearbox, lubricate it, check if the gear teeth are damaged, etc.

If the car has been standing for a long time and does not start, restoring its performance is troublesome and requires cash injections. Fortunately, at present there is everything necessary for this - a variety of diagnostic equipment, tools, liquids, oils. They will remove rust and restore the previous coating of metal elements of a car with special chemicals.

Buying spare parts is also not a problem now. If there are no new and original ones, not badly worn ones from disassembly will do.

Every city has holes. Therefore, sorting out a car that has not been used for a long time is not difficult. Fortunately for this there are all the necessary conditions. If you do not know how to do it yourself, any auto repair shop can produce necessary work quickly and professionally. Increased competition among them helps to reduce the cost of services. This means that to put the car on wheels will not require a lot of money.

In the “legs up” position, most people switch to shallow breathing, which is extremely dangerous for the cardiovascular system and the brain of a person in an inverted position.

Not

The headstand is known as a cooling pose, which means that it helps to turn all attention inward. This pose is extremely useful if you are worried about neuroses, stress, fears or other conditions associated with increased anxiety.

Verdict: harmful

Adherents of yoga call this action "shirshasana", but the physical essence does not change from this, except perhaps the metaphysical one, which has nothing to do with medicine. An untrained person can earn problems with a neck from such an exercise, which is not very adapted for such loads. There is also a chance of getting a stroke. If the vertebral arteries are narrow, fragile and tightly seated in the openings of the vertebrae, they can even exfoliate from an unsuccessful tilt of the head, to say nothing of standing on the head. In other words, there is no clear benefit, but there are real risks.

On the topic of movement, one of critical issues is the problem of the harm of sitting. Sitting is unhealthy and sitting does us serious damage and one might well say that "Sitting is the new smoking." Leading experts agree: Sitting (more than 10 hours a day) actually causes more health problems than smoking. The health consequences are the same for all people: all ages, both sexes, all races and countries. Note that sitting is much more harmful than standing or lying down.

Man is not made to sit on a chair.

The chair is a habit of the last 150 years.

For a long time, the chair remained a prestigious thing. For the ancient Romans, a chair or armchair was an indicator of how successful a person was. An important official did not part with his folding, ivory-lined chair. It was carried behind him by his obedient slave. Only especially respected citizens sat on a low, richly decorated seat - bisillium. And the head of an aristocratic family descended on a home throne made of marble, arranged like an imperial one. The ancient Romans ate lying down, read, wrote, received guests. The favorite furniture of men was simple couches - wedges, borrowed from the same Greeks. The ancient Romans ate while seated only during mourning.

In the East, before and now, it was customary to sit on the floor. Even in prehistoric times, the Chinese created floor mats for sitting and, accordingly, wooden tables with low legs.

The sitting position is unnatural.

1. Sitting is harmful, it increases the risk of developing many diseases.

2. Comfortable chairs don't work.

3. Sedentary lifestyle is worse than immobility.

4. Standing is easier and more beneficial than sitting.

5. Increasing stress levels.

6. Sitting is a bad habit.

Because the brain is constantly adapting, it takes approximately three weeks for the necessary changes in the brain to take place. Threeweeks "chairholic" can become a "walker". Remember that sitting is bad and start looking at your chair with caution!