<>Endorphins are hormones made naturally in your body. What most people don't know is that they can be just as strong as any manufactured pain medication. When endorphins are released in your body, they help block pain signals from registering with your brain. Endorphins also help alleviate anxiety, stress, and depression, which are all associated with chronic back pain and often make the pain worse. >
<>If your purse or briefcase tips the scales at more than 10% of your weight, it’s too heavy. And you need to carry it right. Your best bet is a model with a long strap that lets you position it across your chest like a messenger bag. Our pick: the Ellington Leather Moroccan Shoulder Bag ($169.90). Can’t part with your shorter-strapped number? Switch shoulders every 20 minutes. >
<>That’s a huge topic, but here’s one simple example of an extremely common problem with back pain science: control groups that don’t control. Rather than comparing a treatment to a good, carefully selected placebo, most studies use a comparison to a treatment that is allegedly neutral, underwhelming, or placebo-ish. That makes the results hard to interpret: if each works about the same, it could mean that the treatments are equally effective … or equally ineffective! So much back pain science has this problem — or any one of a dozen other weak points — that you can effectively ignore at least 80% of all back pain research, because it’s so far from the last word on anything. Good science is essential to solving these problems, but really good studies are also difficult to design and rare. BACK TO TEXT >
<>Herniated discs develop as the spinal discs degenerate or grow thinner. The jellylike central portion of the disc bulges out of the central cavity and pushes against a nerve root. Intervertebral discs begin to degenerate by the third decade of life. Herniated discs are found in one-third of adults older than 20 years of age. Only 3% of these, however, produce symptoms of nerve impingement. >
<>Regular updates are a key feature of PainScience.com tutorials. As new science and information becomes available, I upgrade them, and the most recent version is always automatically available to customers. Unlike regular books, and even e-books (which can be obsolete by the time they are published, and can go years between editions) this document is updated at least once every three months and often much more. I also log updates, making it easy for readers to see what’s changed. This tutorial has gotten 134 major and minor updates since I started logging carefully in late 2009 (plus countless minor tweaks and touch-ups). >
<>Grandma was right! Slouching is bad for you. And poor posture can make back pain worse, especially if you sit for long periods. Don't slump over your keyboard. Sit upright, with your shoulders relaxed and your body supported against the back of your chair. Try putting a pillow or a rolled towel between your lower back and your seat. Keep your feet flat on the floor. >
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