Nearly 25% of all adults in the United States (around 117 million people) have at least one chronic illness or health problem.
If your parents have it you have about 55 % chance in getting it
It depends on the person, but I know that the average cycle is about 28 days long, and it only occurs once a month, in normal situations.
Hope this helps! :)
Stay smart,
~Mistermistyeyed.
