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.
Difference between a Regulation, Directive and Decision. Regulations have binding legal force throughout every Member State and enter into force on a set date in all the Member States.
â¢ Directives apply to some or all of the member countries whereas regulations apply across all member states. Related posts: 1  Difference Between Act and Bill. 2  Difference Between Eurostar and TGV. 3  Difference Between Eurozone and EU. 4  Difference Between Law and Regulation. 5  Difference Between Policy and Regulation.