Fatigue may be related to: 1  Use of alcohol or drugs. 2  Excess physical activity. 3  Jet lag.  Lack of physical 1  activity. Lack of sleep.  Medications, such as antihistamines, cough 1  medicines. Unhealthy eating habits.
A directive shall be binding, as to the result to be achieved, upon each Member State to which it is addressed, but shall leave to the national authorities the choice of form and methods. A decision shall be binding in its entirety upon those to whom it is addressed.
Differences between a law and a theory include that a theory is much more complex and dynamic, laws describe, theories explain, and a law governs a single action, whereas a theory explains an entire group of related phenomena. âA scientific law is like a slingshot. A slingshot has but one moving part--the rubber band.