What should be included: 1  The Air-Conditioning and Refrigeration Institute provides a brief explanation of how central air conditioning works 2  . Most central air conditioning systems are a split system, with the heaviest, noisiest, heat-generating components installed outdoors, and an evaporator coil indoors.
Studies show that vitamins of the B group, vitamin C, and minerals are important for normal brain functioning. Furthermore, a deficiency of any of these vitamins can lead to developmental problems in children and psychiatric illnesses in adults.
Vitamin B-12. One essential vitamin that aids in nervous system functioning is vitamin B-12, or cobalamin. Belonging to the family of eight B-class vitamins, vitamin B-12 aids in your body's metabolism. It helps break complex carbohydrates into glucose, the sugar your brain uses as fuel to allow proper functioning.