I add about 1/2 cup of baking soda to every load of laundry. We have pretty hard water. The baking soda softens it so that it is more effective at washing away the detergent. Been doing this for a couple of years and I have noticed that our towels don't lose absorbency like towels we've had in the past.
The average number of children each woman will have over the course of her lifetime is called the Fertility Rate In 2011, the overall global life expectancy for both men and women was
The number of mothers having babies even later in life also drew the average up. From 2000 to 2014, the proportion of first births to women aged 30 to 34 increased 28 percent, and those among women over age 35 went up 23 percent. The data also show that women are waiting less time to have more kids following each birth.