I think most man would focus on look first - outside beauty rather than inside beauty, if say a 40 year woman looks like a 20 something woman because she's young looking, I bet a 40 year old man would still fall in love with her by first sight. That's how man thinks. So the best way for woman to maintain their attractiveness to man is to make sure they always stay young and healthy. How to do that? Make sure you keep a peaceful mind all the time and have a positive and healthy life.