By definition a concussion this severe is brain damage. Bill is confirming Rover’s statement
Sounds like a stroke—If he loves her he should not urge her to run—The stress and strain could kill her.
Brain
Hillary Clinton Hospitalized for Blood Clot: How Concussions and Clots Connect
Clots can be a complication of concussions, but other factors can increase risk of poor blood flow
Clinton apparently has a history of blood clots. She was treated for one that formed behind the right knee in 1998. Her extensive travel schedule — she is the most-traveled Secretary of State in U.S. history — may also put her at increased risk. Lengthy plane rides with limited mobility are known to increase the chances of clot formation, especially for those who may be predisposed to them, either due to their genetic makeup or medications they may be taking, such as oral contraceptives or hormone treatments that boost the risk of clots.