Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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A person with spondylolisthesis often has no symptoms. Those with symptoms may complain of low back pain that is worst when the person is standing, weight-bearing, or playing sports. The pain may spread into the buttocks or thighs.