Michael Castleman is a journalist and novelist, author of more than 2,000 newspaper, magazine, and Web articles, 14 consumer health books, and four mystery novels.

He is "one of the nation's leading health writers" (Library Journal). For 35 years, he has been a prolific freelance medical journalist focused on optimal health, mainstream medicine, alternative therapies, nutrition, fitness, and sexuality. His nonfiction books have a combined total of more than 2.25 million copies in print. His comprehensive guide to herbal medicine, The Healing Herbs, recently expanded and updated as The New Healing Herbs, 3rd Edition (Rodale, 2009), has sold more than 1 million copies.

Three of Castleman's books have been Book of the Month Club Selections: The Healing Herbs; Blended Medicine (Rodale, 2000), a home medical guide that combines mainstream and alternative therapies; and Nature's Cures (Rodale, 1996), a scientific investigation of 33 alternative healing arts, everything from acupuncture to yoga. Two have won "Health Book of the Year" awards from the American Library Association: Blended Medicine and Nature's Cures. One was in print for 28 years, Sexual Solutions. Foreign-rights sales have included: the British Commonwealth, Germany, France, Latin America, Spain, Finland, and China.

Castleman has also written widely for magazines, among them: Smithsonian, Reader's Digest, Prevention, Family Circle, Redbook, Self, Glamour, Cosmopolitan, Good Housekeeping, Ladies' Home Journal, New Woman, Men's Health, Men's Fitness, Men's Journal, Psychology Today, Playboy, Parenting, Child, Natural Health, Natural Solutions, Mother Jones, and Salon.com, among others. Twice he has been nominated for National Magazine Awards--in 1997, for "Harm With Every Puff: How Smoking Hurts," in Mother Jones, and in 1996, for "The Real Truth About Breast Cancer," in San Francisco Focus.

His newspaper articles have appeared in The New York Times, Los Angeles Times, USA Today, San Francisco Examiner, and San Jose Mercury-News, among others.

Castleman's R-rated mystery series is set in San Francisco, and features newspaperman-sleuth Ed Rosenberg. Titles include: The Lost Gold of San Francisco (2003) Death Caps (2007), A Killing in Real Estate (2010), and Killer Weed (2013).

Castleman earned an M.A. in journalism from the University of California, Berkeley, Graduate School of Journalism (1979), and returned to teach medical journalism there (1995, 1996). He is a Phi Beta Kappa graduate of the University of Michigan (B.A., 1972).

Castleman grew up in Lynbrook, New York, a Long Island suburb of New York City. Since 1975 he has lived in San Francisco with his wife, a family physician. They have two adult children. In his free time, he enjoys jazz, blues, yoga, downhill skiing, and scuba diving.