so, you know what these girls are, they sort of i personally, you know, as it were a trained scientist, a certified chemist who   you tend to, to take a, a slightly  er diagnostic view of things, but that's not quite right, but you take a slightly  objective view of things and i, i, i, i've been thinking to myself   ah it is  rotten unfair on girls because sometimes sort of between about fifteen and twenty five, but now i suppose because they're all growing up so much earlier it's between ten and twenty, they have a pretty monumental change, they, and, and  it's not a bundle of laughs but they can talk to their friends, they can see their friends and talk to their mothers, they can get a vague way it's gonna affect them and they can  you know, sort of, let's say twenty, twenty five  settle into a routine which has  variations every, during the four weeks and they vary between individuals, i mean  it's well known