That behavior, according to Tyler Seau and Junior's ex-wife Gina, included wild mood swings, irrationality, forgetfulness, insomnia and depression.

WSJ: Junior Seau: NIH Study Finds Football Star Had Brain Disease

Since returning from Iraq I have suffered nightmares, insomnia, massive swings in mood and general ill health, although I put this down to a shoulder operation that I had undergone.

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