Something that causes a response in a body part or organism. A stimulus may be internal or external. Sense organs, such as the ear, and sensory receptors, such as those in the skin, are sensitive to external stimuli such as sound and touch.
Just curious...given my insurance plan I can get a new pair of frames and lenses once every 2 years, but I realllly love glasses so I tend to purchase about 2 pair per year...Gotta have my style...oh and of course the added benefit of sight is a nice plus:)
Recommended Dietary Allowance. The minimum amount of magnesium a person should get each day depends on age. Women under 30 need 310 milligrams of magnesium each day, while men of the same age need around 400 milligrams. For women over the age of 30, magnesium recommendations jump slightly to 320 milligrams.