Amid all of the hype about ''male menopause'' & midlife crisis, it's not surprising that many men approach their 40th birthdays with trepidation. What Curt Pesmen, found, in talking with more than 100 men as well as some of the leading experts & researchers in the field, is that the picture is nowhere near as bleak as many make it out to be. In fact, turning 40 can -- &, Pesmen argues, should -- be the time when a man truly comes into his own. A time to enjoy his peak earning power; to draw on the hard-earned wisdom that life bestows; to become the kind of lover women dream of; a time to set priorities in life & to plan for a rewarding future; a time to take control of his own health & fitness. A time, in short, to become a man in full.