The improved posture and abdominal tone might contribute to reducing back pain, and many years ago there were indeed studies which offered evidence in support. Unfortunately, insurance does not cover tummy tuck, even if back pain is involved.
How is National Re Construction abbreviated? NRC stands for National Re Construction. NRC is defined as National Re Construction somewhat frequently.
Since 1974, the U.S. Environmental Protection Agency (EPA) has used the Noise Reduction Rating (NRR) as its yardstick to measure hearing protector effectiveness in reducing noise levels. But since it is based upon idealized laboratory testing, the NRR can overestimate the protection received by many workers.