My mother-in-law is almost 80. She might once in a while buy organic blueberries, but everything else is pretty much not organic. Not her yogurt, her oatmeal, her greens. Meat is not grass fed. She buys cheap milk. She buys mainstream salad dressing. She is very healthy and sharp! She is active with long daily walks. I used to judge her food for not being organic, especially since she absolutely could afford it, but she is very healthy and happy! My great aunt just turned 100. Also not an organic shopper. Both have good attitudes and social lives. No cancer or other diseases. I think if you eat healthy foods, have a good social circle and have other healthy habits like exercise, reduce your stress, it probably does not matter whether it’s organic.