500x Norepinephrine

Ever heard of "in one ear out the other"? That's a no-go, got to be attentive out here. Or what about "its on the tip of my tongue"? Never that, sometimes remembering is the difference between joy and pain. Norepinephrine is a neurotransmitter in the brain that plays a key role in attentiveness and memory. It's major in the learning process, and cold showers can boost it by up to 500x. Im not saying your going to be like Bradley Steele off of limitless, or even Scarlett off of Lucy, but the most intelligent version of yourself..possibly. Wisen up