What are voluntary attritions?

Skeletal muscle tissue is voluntary. Cardiac muscle tissue is involuntary. (We don't have to direct our heart to beat, thus it is involuntary muscle.)

Attrition is a process of using up current supplies before buying new ones. A war of attrition is when an army has to fight with the men and supplies it has at hand until it runs out. If one...

To do a voluntary action means to do it without pay, or without having to be asked or forced. Example: Martin's voluntary cleanup of the rubbish surprised them since nobody had asked him to do it.

Voluntary

Annual attrition is the actual attrition rate for a year or a period of years. Annualized attrition would be an extrapolation based on the portion of a year (for example, take the actual attrition...