Jennifer Aniston doesn't feel much different than she did in her 20s.

The 46-year-old actress says not much has changed for her in the past two decades but insists she is feeling ''physically better'' now she is older.

She said: ''Maybe because ignorance is bliss, but I don't feel much different than I felt in my 20s, except I feel physically better. I also love myself more. That's the most beautiful thing that reflects out is inner confidence and inner sort of love.

''Our generation knows what we should put in our bodies, and that we shouldn't be trashcans putting all sorts of c**p in there. We know all the benefits of eating organic fruits and clean foods. We learned that smoking and sugar are the enemy. Our generation knows these things.''

The 'Cake' star is also strongly against filler injections and believes it is a ''slippery slope'' for those who subscribe to it.

She added to Yahoo! Beauty: ''Not only is it OK [without them], it's better. It just doesn't help. It's a slippery, slippery slope.

''And like we were saying before, they just start to lose perspective, it's their new normal, so it's a hard one to come back from.''