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
These bulbs do not use more electricity to turn on than to run them, so you will always be using less energy by switching these light bulbs off when you donât need them. CFLs (which use the same technology as the fluorescent tubes in strip lighting) require a small amount of extra electricity to light-up â but only about the same amount as it takes to run them for a minute or two. As a result, you will still use less electricity overall if you switch CFL lights off once youâre finished with them.