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.
<span>The question says,'a person metabolism remain constant throughout life. The statement is false. Metabolism is the sum total of all the chemical activities which occur in the body in order to sustain life. Many factors affect metabolism per time, these include: physical activities, hormonal imbalances, age, disease conditions, pollutants, toxins, lack of essential nutrients, dehydration, etc. </span>
Is this feeling something you would like to talk about?