According to the National Institutes of Health, the central nervous system is made up of the brain, spinal cord and nerves. The peripheral nervous system consists of sensory neurons, ganglia (clusters of neurons) and nerves that connect to one another and to the central nervous system.iseases of the nervous system. âOf all the diseases of the nervous system, the most common difficulty that people have is pain, and much of that is nerve-related,â according to Dr. Shai Gozani, founder and CEO of NeuroMetrix, a medical device company. âThere are 100 million people who live with chronic pain.â.
Hey when I was pregnant with my first child with on a few days after ovulation I had a heightened sense of smell and a metallic taste in my mouth as well I gagged while brushing my teeth, so yes it can.
So, as women's levels of estrogen rise and fall, their sense of smell may change. There's evidence that a woman's sniffer also changes during her menstrual cycle and at ovulation, as well as during pregnancy [source: Sample ].But scientists aren't exactly sure how (or if) estrogen creates the change in the nose or in the brain [sources: Harvard Women's Watch, Pletsch and Kratz ].Scientists also debate whether a pregnant woman's heightened senses serve any benefit to her or her unborn baby.ut scientists aren't exactly sure how (or if) estrogen creates the change in the nose or in the brain [sources: Harvard Women's Watch, Pletsch and Kratz ]. Scientists also debate whether a pregnant woman's heightened senses serve any benefit to her or her unborn baby.