President Joe Biden’s shocking decision to end his campaign and endorse Vice President Kamala Harris has only sparked more frenzied rumors about his alleged failing health, RadarOnline.com can reveal. Connecticut-based psychologist Dr. Holly Schiff even suggested she did not think the 81-year-old would have been able to “survive another term as president”. Noted Schiff: “If he did, I do not believe he’d be able to endure the rigors of the job. Dementia is progressive, and his brain structure and capabilities will continue to deteriorate over time. I would say he has a year, maybe two if he’s l…