Office Chair Advice

Office Chair Posture

For most people, it is quite a challenge to maintain good posture while sitting in an office chair and working for long hours in front of a computer. In fact, a surprising number of people sit at the front of their office chair and hunch forward in an attempt to get closer to their computer screen. The computer is a very potent ‘consciousness absorbing’ device – it takes the mind away from the body and keeps it focused on what’s on the screen instead.

This article reviews a simple, practical way to counteract this tendency to hunch forward and instead improve posture by keeping the body anchored to the back of the office chair.

Upright Posture

Both the abdominal muscles in the front of the spine and the back muscles in the back of the spine work to hold the body erect, like two elastic bands positioned on either side of the spine. Forward leaning posture – hunching forward while sitting in an office chair - distorts this balancing system and places considerable strain on the back.

To illustrate the amount of strain on the back, think of the example of balancing a stationary motorcycle upright so that it doesn’t tip over. If the motorcycle is properly balanced it can be held upright easily with one hand. Similarly, when one sits upright in an office chair, the abdominal and back muscles work in unison to maintain an erect posture with only minimal effort.

However, if the motorcycle leans over a bit there is a significant difference in the amount of effort it takes to keep the bike from falling over to the ground. The more the motorcycle leans, the more effort is needed to keep it from falling over. Similarly, when people hunch forward while sitting on an office chair their back muscles have to work much harder to hold the body up and keep it from falling forward.

Simply put, leaning forward 30 degrees in an attempt to get closer to the computer screen puts 3 to 4 times more strain on the back, causing advanced wear and tear on the joint surfaces, the ligaments of the spine, and the discs located between the vertebrae¹. The back muscles are also negatively affected as the continuous added strain causes them to tighten up, reducing optimal blood and nutrient flow to the back muscles. Over time this posture leads to the development of tight, rigid muscles and joints, which makes them more prone to injury.

One of the biggest misconceptions with sitting is that it doesn’t require any muscular effort. This is absolutely false. The back muscles are continuously working to maintain the body in an upright posture while sitting. And for those who sit in an office chair and work for long periods of time at a computer in a hunched forward posture, the structures in the back suffer considerable strain.

Technique To Avoid Hunching While Sitting In An Office Chair

To avoid the natural tendency to hunch forward while sitting in an office chair and working at a computer, this simple technique is fool-proof. Place a tennis ball between the middle back and the office chair on each side of the spine. Holding the tennis ball (or similar ball) in place while sitting and working at a computer accomplishes three things:

• Because the mind senses the ball, it remains connected with the body instead of being completely absorbed by what is on the computer screen. Maintaining more awareness of the body allows one to more easily maintain better posture.
• By leaning back into the tennis ball an acupressure effect is created, which stimulates blood flow into the area and physically releases contracted muscle and connective tissue. The pressure of the ball also creates a central nervous system mediated analgesic effect that is somewhat similar to acupuncture, loosening tight areas while sitting in the office chair and getting work done².
• Importantly, if one does get absorbed into work and starts to lean forward the tennis ball will fall out, serving as a concrete reminder to stop hunching forward and straining the back.

Please note that the above technique and the advice provided on the following pages are effective, cost next to nothing, have no adverse side effects and are quite easy to do.

Does The Use Of Cell Phone cause Malignant Brain Tumor?

The use cell phone increases your risk of developing a malignant brain tumor by two to four times.

When Vini Khurana, PhD, an Australian (and Mayo Clinic–trained) neurosurgeon, announced that the link between cell-phone use and cancer was irrefutable--the result of his analysis of more than 100 studies--it set off alarm bells around the world. Use a cell phone, he said, and you increase your risk of developing a malignant brain tumor by two to four times. Until recently, the majority of research indicated little or no link between cell phones and cancer (the World Health Organization and the American Cancer Society maintain that cell phones pose no threat), but several new long-term studies have cast doubt about their safety. Given that cell phones and PDAs serve as lifelines for so many people--24 percent of 10- and 11-year-olds carry them--it raises urgent questions.

Do cell phones cause cancer?

Maybe…with extended use. Mobile-phone users are twice as likely to develop malignant, difficult-to-treat brain tumors called gilomas, according to a first-of-its-kind study that analyzed the effects of cell-phone use over 10 years or more and was published last year in the journal Occupational Environmental Medicine. The Bioinitiative Working Group, an international coalition of scientists and public-health experts, recently published a hefty report detailing the link between the nonionizing radiation caused by a cell phone's electromagnetic fields (EMFs) and cancer, DNA damage, Alzheimer's, and other diseases. "The cells in the body react to EMFs in cell phones just like they do to other environmental toxins, including heavy metals and chemicals," says Martin Blank, PhD, a professor in bioelectromagnetics at Columbia University and one of the report's authors. The study found that risk from cell-phone use starts at 260 lifetime hours.

Do cell phones emit radiation only when you are talking?

No. "Cell phones give off radiation any time they're turned on so that they can communicate with base stations," says Lou Bloomfield, PhD, professor of physics at the University of Virginia and author of How Everything Works: Making Physics Out of the Ordinary. "The radiation emitted, however, is stronger and more frequent when you're talking or messaging." Also, the greater distance you are from a base station, the more radiation your phone must emit in order to get a signal, which is why your phone feels hot when you have low reception. That heat you feel is radiation. The Bioinitiative study found that adverse effects to DNA can also occur before the phone heats up. To reduce your exposure, make calls only when you have strong reception, hang up before your phone heats up, and store your phone away from your body when it's not in use.