Hardened plaque narrows the coronary arteries and reduces the flow of oxygen-rich blood to the heart. If the plaque ruptures, a blood clot can form on its surface. A large blood clot can mostly or completely block blood flow through a coronary artery.
For its second season, however, Fear the Walking Dead showrunner Dave Erickson has revealed that the story will be big enough to fill 15 episodes. â By the end of season one, we definitely know the world has changed ,â Erickson explained (via TV Line) during the showâs presentation at the TCAs.
UPDATE 3 (Oct.30, 2015): The Walking Dead has been renewed at AMC for a seventh season. Â« 1 The Walking DeadÂ» season 5: release date. 2  Fear the Walking Dead season 3 start date 2017. Â« The Walking DeadÂ» season 4: release date.