At 80, 'Ghostbusters' star Ernie Hudson says his fitness goal is surprisingly simple

Ernie Hudson.

Nathan Congleton/NBC

• Ernie Hudson says turning 80 was a number he "never thought" he would see.
• As part of his longevity journey, he works out regularly and pays extra attention to his mobility.
• The "Ghostbusters" star added that his "biggest goal" right now is "to just stay alive."

At 80, Ernie Hudson still works out regularly — and it's all part of his longevity journey.

In an interview with Men's Health published on Wednesday, the "Ghostbusters"...