I've never had any problems with under eye bags. You may be shaking your head right now and thinking that I am a big fat liar, but it's true! I am 35 years old and in that period of time, I have not had any issues of dealing with puffiness or dark circles under my eyes. My sister, on the other hand, has under eye bags almost every day when she wakes up. She would try all the proven remedies but the next day, the under eye bags would be back again.
Bags under eyes can be hereditary. My mother would be the same as me, but my father would have dark circles under his eyes even if he had enough sleep the night before. I guess my sister took after my dad. But one of the major differences between my sister and me is that I love drinking water. I would drink more than eight glasses of water a day. I am also a coffee drinker, but I would make it a point that I drink two to three glasses of water for every cup of coffee that I drink.
The main cause of under eye bags is due to our skin losing its elasticity with age. Water improves our circulation, and it is also proven to help give us good skin, as it is a natural moisturizer. Simple I know, but believe me - it's very effective.
Living healthy helps as well. I make it a point that I have a balanced diet. I try to get enough sleep whenever I can, and exercise when I have the time. Another important tip to preventing bags under eyes is to not rub your eyes. My sister has developed a habit of rubbing her eyes and it does not help to get rid of puffiness or take the dark circles away. The best remedies are to live a healthy life and everything else will follow. Very simple, but very true.