"Period poverty is not something that a lot of us think about because we take it for granted that we can just go to the supermarket, or go to our homes, and pick up products."
'Aunt Flo', 'Lady friend', 'That time of the month' - all euphemisms for the word period.
Periods are completely normal. In fact, a woman has an estimated 450 periods during her lifetime.
Commonly associated with discomfort, periods are more painful for certain women - women who don't have enough money to buy sanitary products.
Period poverty is a term coined to describe women on low incomes who can't afford tampons or towels.
Forced to choose between buying food or sanitary products, they'll use toilet paper instead.
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It may come as a surprise but period poverty is happening in Ireland.
A survey by Plan International, carried out last year, found nearly 50 per cent of Irish teenage girls find it difficult to afford sanitary towels and tampons.
Claire Hunt of Homeless Period Ireland told iRadio that it's a "bigger problem than we realise and quite a hidden issue too":
"Obviously it does affect homeless women, and up until recently has affected women in direct provision, but also there could be school girls, and just people who are struggling financially - families who are availing of food banks."
Homeless Period Ireland believes sanitary products are necessities, not luxury items, that should be made available to all women.
The organisation is behind a drop off initiative, where people can donate tampons, towels and other sanitary products to women in crisis.
There are over 30 drop off points around the country, including Maynooth, Castlebar, Westport, Mullingar and Ashbourne.
Claire also spoke to Louise on The Hub about Scotland making sanitary products free across all schools, colleges and universities, how some county councils here are piloting a similar scheme, and how people can donate products to Homeless Period Ireland.
Listen to the full interview below.