I would suggest that you take a close look at high-dose melatonin,
My wife died in 2018 of breast cancer that had spread to many of her major organs.
She was considered to be in a low-risk group, but just as non-smokers sometimes get lung cancer she developed breast cancer which could have been found earlier if doctors had listened to her concerns.
Unfortunately, even though I was a supplement freak, my wife never bought into it.
Mainstream media back in the day thought they were a waste of time and money and you could get everything you needed in a normal diet.
By the time I convinced my wife to start taking melatonin, it was already too late.
Not medical advice, but I think every woman should look into the anti-cancer properties of melatonin, especially high-dose melatonin. Also, it dramatically reduces the negative symptoms of menopause for some women.
I have three living daughters, one of whom is in menopause now and she has told me how much melatonin has reduced her symptoms. They all take melatonin in doses of 20 to 60 mg, hopefully as a breast cancer preventative.
Shift workers might be more apt to develop breast cancer because of the suppression of melatonin and disruption of the circadian cycle.
"Two systematic reviews examining night-shift workers suggest
increasing evidence of association with increasing cancer incidence and all-cause mortality due to disruption of circadian rhythm and melatonin suppression"
Anti-proliferative actions of melatonin in breast cancer
Numerous studies have shown that melatonin exerts oncostatic effects on a variety of malignancies (Hill et al. 2011), but its effects on breast cancer have been studied most extensively. Both clinical data and animal studies have provided evidence that melatonin reduces the incidence of experimentally induced cancers.
"A Narrative Review of the Carcinogenic Effect of
Night Shift and the Potential Protective Role of
Melatonin"
