Stimulants don't cure ADHD. What they do is help to alleviate or reduce symptoms while the stimulant is active in your system. Taking stimulants isn't like taking an antibiotic to cure an infection, it's like wearing glasses so you can see, though the glasses don't cure your vision problems. Sources: Cleveland Clinic.
Glucose is the Primary Source of Energy for Cells. Glucose is the human body's key source of energy as it provides energy to all the cells in our body. Glucose also is critical in the production of proteins, lipid metabolism and is a precursor for vitamin C production. Glucose is the sole source of fuel to create energy for all brain and red blood cells. The availability of glucose influences many psychological processes. When glucose levels are low, psychological processes requiring mental effort l(self-control, critical thinking and decision-making) become impaired.
Brain Tour. 2. Supply lines. Your brain is nourished by one of your body's richest networks of blood vessels. With each heartbeat, arteries carry about 20 to 25 percent of your blood to your brain, where billions of cells use about 20 percent of the oxygen and fuel your blood carries. When you are thinking hard, your brain may use up to 50 percent of the fuel and oxygen.