Rest and recovery are essential components of any personal training plan.
The most accurate statement about values is that they are universal in nature. There are said to be five core human values that are universal, meaning that everyone that lives on this planet should have them and for the most part they do, they are; RIGHT CONDUCT. PEACE. TRUTH. LOVE and NON-VIOLENCE.
I believe true but statistics show it is random and all over the place with partial openings and partial closings.
In the mid-19th century, from around 1840 Karl Marx and Frederick Engels penned a series of books that reflected on this change, developed a theory for explaining social change and political revolution, and drew up a programme for action that became enormously influential among the working class worldwide.