California's fieldworkers grapple with back-pain epidemic

The spring harvest is kicking off, and thousands of farmworkers are filling fields, stooped and crouched as they deftly weed and pick acres of ripening berries, greens and other crops.

But as business picks up at county farms, so too will visits to medical clinics, where back pain often tops the list of worker complaints.

With an agricultural labor force of nearly a million people, California is a hub for many labor-intensive crops, like strawberries and lettuce, which require a lot of bending to weed and harvest.

Workers spend up to 12 hours a day, six days a week stooped over on the job, creating what some describe as a "back-pain epidemic."