Slowing down the ageing process

I don't think so, but you are right, I hate how fast you age on the game. I heard that if you get the mace from the Avo temple that it is suppost to slow down age, but I had it and it didn't work.

Yes you can. You have to give a lot of money to the temple of Avo. First you will get Sentinus. It is a pretty cool mace. Then if you donate even more you either get like ten years younger or you get named Paladin.I forgot which first,but you will get younger. I did it myself. P.S. I have done everything possible in Fable,I unlocked all silver chests, unlocked all demon doors, mastered everything but a few spells, and found all clues to the frying pan so if you want complete answers ask me.

Yes, If you master everything you want to master before the Archaeologist quest, (the first time you meet him) then you can return to being 18.

Master everything, then start the quest with a lot of money, (200,000 if your alignment is fully good)

Get to the temple of Avo and donate 100,000 to get the Sentinus and another 100,000 to get around 5 or 6 years knocked off your age. Then Hero Save and do it over and over till your as young as you want. You're gonna have to keep making money while your doing this cause it's obviously expensive but buying/selling gems to the guy in oakvale makes it easy.