Paul McCartney Reveals the Strange Exercise That's Kept Him Healthy at 78

Legendary musician Paul McCartney has had an incredible career, and he's still writing and performing at the age of 78. That doesn't come naturally: There's a lot that goes into maintaining a healthy lifestyle that promotes longevity. Recently, McCartney discussed a strange exercise that he's been doing for years. Both Paul and his daughter, Mary McCartney, say this one technique has helped keep a key body part healthy over the years. There's even a video of Paul demonstrating the exercise on YouTube. Read on to find out what routine this music icon swears by.

Source: Allie Hogan/bestlifeonline.com

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