Dysmenorrhea is estimated to occur in 20% to 90% of women of reproductive age. It is the most common menstrual disorder. Typically it starts within a year of the first menstrual period. When there is no underlying cause often the pain improves with age or following having a child.
PEI is 224 kms long. If you were doing an average walking pace of 5 kms an hour, and you could survive without sleep or stopping to eat,bit would take you 46 hours or just under 2 days. The width varies greatly, from an hour to an afternoon. Views Â· View Upvotes.
You should select a porcelain tile because the body will not absorb water and is not at risk to expand when it freezes. Back to top. 02. What is a PEI rating? PEI is a measurement of the âabrasion resistanceâ of a tile, meaning how much ârubbingâ does it take to physically impact the look of the tile. The test is scored on a scale of 1 to 5 and each value represents a durability to withstand increasingly more demanding traffic.