Jacob woke up early in the morning on 12/16/2017 with a burst cerebral aneurysm on his right frontal lobe. As is usually the case, this was completely unexpected. Blood flowing from the burst aneurysm is immediately life threatening, causing death in many people before they're able to be treated, and in many cases even if they are treated. Within a few hours he underwent an endovascular coiling procedure, which is done through a catheter inserted in the femoral artery, all the way up through the heart and into the brain. The procedure successfully stopped the bleeding, but a significant amount of blood had already leaked into his brain, so the next procedure, to insert a drain tube through his skull (the procedure is called an External Ventricular Drain), was performed in the morning of 12/17/2017. As of this entry, there are no known additional complications from these procedures. He is fully sedated except when they perform basic neurological tests.