We certainly do have to be realistic about where we stand. It is the case that cancer is the second-leading cause of deaths in the U.S., in fact, in nearly half the states it's the leading cause of death. And we have a ways to go. Tyler Jacks More Quotes by Tyler Jacks More Quotes From Tyler Jacks The challenge is that if you stimulate your immune system, it might get over-stimulated. And it might actually start causing harm to normal cells in your body. So we have to work a balance between attacking the cancer and not attacking yourself. Tyler Jacks cancer cells challenges We are living through a remarkable time where we're translating this investment that we've made in cancer science to new treatments. And they're benefiting a large number of people and they will benefit many more in the years to come. Tyler Jacks cancer numbers years Cancer is complex and therefore there is not a one-size-fits-all solution. Tyler Jacks size cancer fit Actually, as cancers develop in an individual patient, an individual cancer cell might be different - a little bit different - from the cell that's sitting right next to it. And so there's heterogeneity, we call it. It makes the problem that much harder. Tyler Jacks cancer cells might