If one is taking part in a marathon or other event, it is possible to take tablets to stop or manage periods, surely this is better for the runner , rather than having to cope with possible period pains & insufficient sanitary products.
how do gymnastics cope,? my word can you imagine on the beams etc, or ballerinas, swimmers ( a pool full of blood ! )
Not to mention the insult to past generations (& those still now who do not have a Choice in the matter)
Should we not be relieved that we have the necessaries to make our lives simple & comfortable, & Active !