The old D&D aging you 1 year/Haste did give it perspective.
When did this appear? I never remember reading it. Then again, I have not seen DnD since the very first editions back in ?1978.
Or, how about this idea?
Like me, in the past, and with my upcoming world, tell the players that the use of Haste shortens their lifespan by ten times the amount as the Haste spell.
In other words, if a Haste spell is used for ten minutes, then one's life is shortened by 100 minutes.
I know, that does not sound like a big deal. However, if a character is hasted a few thousand times through his life, it could theoretically add up to shortening his life by several years.
Then players tend to only use Haste when absolutely necessary.
I did this because I found it to be a headache keeping up with it.
rmfr