90 days to a new habit

Here's another suggestion from the article on staying healthy as we age from the February/March issue of AARP: The Magazine:

"GIVE A NEW ACTIVITY 90 DAYS. Research shows that most life changes take at least three months to become a habit. That was true for me. When I started running, I pledged to stick with it for three months. Sure enough, in that time I saw my health and life markedly improve."

I don't know about you, but I can so easily give up on a new habit before it's really become a habit. I think, Well, I tried long enough and it really didn't work. Or I drop it without even consciously thinking that I'm doing so—simply slipping back into old (and perhaps unhealthy) habits!

Mostly, I must confess, it's the latter. Perhaps it's just the path of least resistance—returning to the way I did things before.

Being reminded again that it really does take a while—three months, in fact—for a habit to stick is good for me to hear. And notice the words "at least" that precede "three months" in the quote. So that 90 days is a minimum, not a maximum.

What change or new habit would help you toward healthier aging?