@georgetakei

As ceasarslegon probably knows, taking a large dose of sugar and caffeine may not be the most healthy of practices!

He might want to take a look at the supplement vinpocetine as a possible alternative. This is a phosphodiesterase type 1 inhibitor that dilates vasculature in the head area, resulting in more blood reaching the brain.

It's not for everyone, since among other side effects, it thins the blood somewhat, which can be dangerous if one has a tendency toward hemorrhagic stroke, or if one is being treated with blood thinners already. And although it is available over the counter in the U.S., in some other nations it requires a prescription (and is sold under the name Cavinton). So it is serious medicine and a doctor should definitely be consulted before one should consider its use, to be sure there are no negative interactions with current medications or a patient's specific conditions.

I have no medical training myself--just passing along what I've read about a supplement that I am currently using myself.

I would only add that a condition of low blood pressure to the point that it affects brain function might possibly cause subtle brain damage over time through temporary episodes of oxygen deprivation during those times when the brain is not getting enough blood.