In the most basic terms, the function of norepinephrine is to mobilize the brain and body for action. Norepinephrine release is lowest during sleep, rises during wakefulness, and reaches much higher levels during situations of stress or danger, in what has been called the fight-or-flight response.n the sympathetic nervous system norepinephrine is used as a neurotransmitter by sympathetic ganglia located near the spinal cord or in the abdomen, and is also released directly into the bloodstream by the adrenal glands.
By turning lights off, you could save 10 to 20 percent of your total household electricity usage. You don't necessarily need to turn lights completely off to save energy--use a dimmer switch. Incandescent Lights
Whether your home uses 2,000 or 10,000 kWh a year, there are simple ways you can save electricity in your home. Understanding how electricity is used can help prioritize opportunities to reduce it.For example, the chart above shows that defrosting a freezer has limited potential, while switching to low-energy light bulbs or limiting air-conditioner use will have greater potential.his graph shows how much electricity the average American household used for different tasks in 2010. By separating electricity use into different end uses we can see where the major demand for electricity is in U.S. homes. Air conditioning is a big user, as are lighting, water heating, and refrigeration.