Natural Way to Get Rid of Sagging Above the Eye By Carole A. Ward Droopy eyelids begin when the fragile layers of skin that surround the eyes thin and lose their elasticity due to age, stress, smoking, dehydration, depression, a diet rich in sugars and other environmental factors.
Examples of principles are descriptive comprehensive and fundamental law, doctrine, or assumption, the normative rule or code of conduct, and the law or fact of nature underlying the working of an artificial device.
A fixed or predetermined policy or mode of action. 4. A basic or essential quality or element determining intrinsic nature or characteristic behavior: the principle of self-preservation. 5. A rule or law concerning the functioning of natural phenomena or mechanical processes: the principle of jet propulsion. 6.