Yep, I agree with Linda.
I was lucky to find my lump, early, with self examination.
I would encourage self examination, pluss mammograms.Have a mamogram annually, at least from age 40, earlier, if there is family history.
Also, mammograms can hurt, let's face it...I find taking pain killers half an hour beforehand helps.
Also, do your best to be supportive for people going through treatment for cancer.
That means, no free advice, just cuppas, maybe offering lifts to tests and treatment, being good company.It can be very lonely, so many people run...maybe they think cancer is infectious?