In other words, the. compressor elevates the boiling. point of the refrigerant to a point. at which the air (or water) mov-. ing across the condenser is low. enough to condense the refriger-. ant to a liquid. Additional passes.
The most common cause is a herniated disk: When a disk develops a tear or crack and bulges into the spinal canal, it can pinch the sciatic nerve. Usually symptoms clear up within about 6 weeks, but for some people, the pain can last.
Stretching and strengthening exercises that target the muscles of the lower back, abdomen, and thighs can help reduce the symptoms of sciatica. 1  A few beneficial exercises to help decrease pain associated with sciatica include: 2  Piriformis Muscle Stretches. 3  Low Back Stretches. 4  Hamstring Stretches. 5  Core Strengthening.