New Delhi, Nov. 9 -- Former US President Joe Biden has shared an emotional update about his cancer battle. He posted his message on social media on November 9.

Joe Biden discussed his health, ongoing recovery and upcoming presidential memoir. He also thanked Americans for supporting him during his treatment.

Biden admitted that his health condition has affected his daily activities.

"Some days are better than others," he wrote.

He explained that cancer has not stopped him from working. However, the illness sometimes slows him down. Biden also revealed that his doctors remained encouraged by his response to treatment.

He thanked supporters for their prayers and kind messages. Their encouragement has meant a great deal to Jill Biden an...