Creatinine levels relate to both muscle mass and to kidney function. As you age, your muscle mass decreases but your kidneys tend to function less effectively. The net result is not much change in creatinine levels in the blood as you get older.
As a result, California employers are required by law to have workers' compensation insurance, even if they have only one employee. And, if your employees get hurt or sick because of work, you are required to pay for workers' compensation benefits.
California laws on paychecks and paydays cover when you must be paid, what information your employer must provide with your paycheck, when you must receive your final paycheck if you quit or are fired, and what that final paycheck must include. California Payday Laws. Generally, California employees have the right to be paid at least twice a month.