Orange, also called sweet orange, is a crop of the genus citrus alongside lemons, grapefruit, limes and other hybrids.It belongs to the species citrus sinensis. Many hybrids of orange have sprung up, but the original citrus species is the mandarin orange citrus reticulata.
Orange is a modified kind of berry.
Oranges contain naturally occurring photochemicals known as flavonoids, and are particularly rich in sugars of flavonoid known as flavanones.
Flavonoids improve memory by the activation of signaling pathways in the part of the brain called the hippocampus which is associated with learning and memory. Therefore, orange improves cognitive ability - a very pivotal function of the brain.
One is however, advised to avoid orange juice, considering its high glycemic index, which can cause a surge in blood sugar levels that results in series of repeated and irregular surge and plunge in the brain sugar supply, stemming from a certain feedback mechanism - a situation that temporarily hampers the brain's cognitive ability. This can lead to brain fog with repeated occurrences. But taking orange whole (with the fiber), gives a positive result, as studies show.
Oranges are also loaded with vitamin C, a powerful antioxidant and mood elevator that makes your world go round when you take it.
Other petrochemicals in oranges that help the brain include beta-carotene which is an antioxidant that helps in removing free radicals from the brain's intracellular and extracellular environments.
Zinc, also found in oranges, is need to strengthen the connection between the cerebral hemispheres for effective brain functions.
Potassium in oranges is needed in the generation of action potential in the brain.
These photochemicals (phytonutrients) in oranges make them very friendly to the brain as they help in boosting brain health and cognitive performance.
Festus C. Anaba, B Med. Sci. Physiology
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