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“After an examination, [my chiropractor] told me I had a lot of tightness in my neck and shoulder,” Sorbo says. “Then he cracked my neck, which he had never done before, saying he felt the manipulation would help alleviate some of the tension.” Driving home, Sorbo began to experience blurry vision, dizziness, and buzzing in his head. He decided to sleep it off. But the next morning, his speech was slurred and he could barely walk…MRI tests show that Sorbo had suffered three distinct strokes, accounting for his dizziness and vision loss. One of his other doctors suggested that Sorbo's clots may have travelled in reverse, toward his brain…“I was told clots don't typically travel ‘upstream’—in reverse to the brain—so my doctors were unsure whether [my shoulder] aneurysm was related to the strokes,” Sorbo says. “I began to wonder whether having my neck cracked had somehow exacerbated my condition.” Sorbo didn't have any of the risk factors for stroke, which include high blood pressure, high cholesterol, smoking, diabetes, obesity, a family history of stroke, drug use, or cardiovascular disease. Since his symptoms first appeared immediately after having his neck cracked, many of his doctors believed that the chiropractic adjustment, combined with his existing aneurysm, could have triggered his strokes. Neurology Now (October/November 2011, Vol 7 Issue 5 pp 26–28, 30–31)