Guys.. What is the truth about women getting less attractive with age?

Ok so a lot of men say that women get less attractive with age and that they lose their 'seductive power' because basically it is claimed that men naturally go for youth. What age would you say they lose this attractiveness though? Also many women who are married/in their 40's/50's tend to let themselves put on weight, cut their hair short and dress in a frumpy way. Is this part of the reason women lose attractiveness would you say or are slim women who keep themselves fit deemed as unattractive/too old too?

Does height make any difference ie would a petite woman have an advantage over a tall woman or vica versa when ageing?


(Btw dont don't turn it Into a men verse women or a hate thread just try to be unbiased and not let bitter feelings/rejection affect your perception! I've not dated much and have been ignored/told I'm unnatractive through my 20's (I'm a tomboy) so no need to be bitter towards me lol!).