https://www.businessinsider.com/colt...#jim-mcmahon-1

The hardships of 11 former NFL players show why Andrew Luck's early retirement shouldn't come as a surprise
Alexandra Licata Aug. 26, 2019, 5:25 PM


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Former quarterback Jim McMahon was diagnosed with early-onset dementia in 2009 after retiring from football. He also struggles with depression, memory loss, and severe headaches.
Throughout his 14-year professional career, he said he had three to five diagnosed concussions with no way of knowing how many he incurred. A broken neck also went undiagnosed by a team doctor, according to McMahon. It resulted in excruciating pain caused by spinal fluid in the brain. Every few months his neck needs to be realigned to drain the fluid.
McMahon also became addicted to prescription narcotic painkillers that he took throughout his career for his neck, shoulders, and arms. He said he would take 100 Percocet pills a month to help the pain before using medical marijuana.
McMahon was one of seven former NFL players who s ued the NFL in 2011 for negligence, which resulted in a $765 million settlement.

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