Learn about what it means to go through a midlife crisis, how it can impact a marriage and what to do about it. | "As we approach midlife in our middle 30s or early 40s we are not prepared for the idea that time can run out on us, or for the startling truth that if we don’t hurry to pursue our own definition of a meaningful existence, life can become a repetition of trivial maintenance activities." —Gail Sheehy