I'm 78 and still working part-time. Here's how I've stayed involved with what I love, 16 years after retirement.

By Business Insider | 3 weeks ago

Donald Kimmel, a retired bone biologist, reflects on his fulfilling career journey. From research to consulting, he shares insights on retirement, financial planning, and staying healthy. His experience underscores the importance of learning from mistakes and guiding younger generations.

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