+High Blood Pressure. High blood pressure, or hypertension, is a major risk factor for heart disease. If not controlled, high blood pressure can affect your heart and other major organs, including your kidneys and brain.
21.67 days per month. There are 52 weeks in the year with 5 working days each = 260 days, and when divided by 12 months = 21.67 days. Weekday holidays are also included. I would say this to be more a accurate calculation: Would it not be correct to say on average there are 365.25 days a year (365 normally 366 every 4th year).
The long answer is, of course, more complicated. It depends who you ask, and about whom you're asking. Author Juliet Schor, who wrote the best-selling book The Overworked American in 1992, concluded that in 1990 Americans worked an average of nearly one month more per year than in 1970.