u07jrb, my mom is a 99 y/o 3/4 with numerous other SNPs that increase her risks, but so far she does not have AD. She thinks her risks "double every year after 90", so she takes Curcumin, fish oil, ALA, B12, vit D, etc. She started supplements & fasts in her early 60s. Admittedly, the supplements have been on/off over the years & she no longer does multi-day fasts, but the estrogen continues since her late 40s. Although she is being studied by Stanford with cognitive tests & MRI, she was disappointed they deceided to not make a home visit "so they could see my lifestyle". Words of wisdom from an old E4.
At 36, you can be reassured that AD will most likely be prevented before you develop it, so I would simply focus on following Stavia's primer emphasizing exercise, glucose/weight control and mental stimulation.
Plus, we have a few 4/4 members in their 80s that are cognitively sharp.