Former U.S. President Jimmy Carter’s grandson recently gave an update regarding his grandfather’s health ahead of the politician’s 100th birthday. His reflections were shared during a music event that honored Jimmy. Ahead of former President Jimmy Carter celebrating an incredible milestone on October 1, his loving grandson, Jason Carter, gave some new insights into how his grandad is doing health-wise. The words he shared come after Jason spoke about Jimmy receiving hospice care in his hometown of Plains, Georgia. Speaking to People magazine at the “Jimmy Carter 100: A Celebration in Song” bir…