Dr. Daniel Monti

We've all heard of fashion makeovers, but what about a life makeover?

Dr. Daniel Monti says there are three main areas of life we all need to work on at mid-life -- weight, mood and sex. And better yet, he believes the best way to achieve that makeover is for the whole family -- men, women and children -- to be involved.

There are a number of books aimed at men and women individually, but in his new book, "The Great Life Makeover: A Couples' Guide to Weight, Mood and Sex," Dr Monti has targeted couples, believing that the best way to tackle your issues is together.

Find out what he thinks is the No. 1 factor to help you achieve good health and longevity.