Based on recent research, exposure to common household chemicals in plastics and personal care products can lead to early menopause. The mechanism is the negative effect these chemicals have on ovarian function. Another mechanism by which environmental chemicals have hormonal effects is by mimicking hormones. For example, the heavy metal, cadmium, has estrogenic effects in the body.
Washington University in St. Louis. "Earlier menopause linked to everyday chemical exposures." ScienceDaily. ScienceDaily, 28 January 2015. <www.sciencedaily.com/releases/2015/01/150128141417.htm>.