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Pierce Brosnan shared the secret to his great head of hair, joking that it's all down to his Irish genes — and Guinness

When it comes to aging gracefully, the 72-year-old actor said, "I'm doing my best!"

Brosnan is set to star in a movie adaptation of Richard Osman’s popular book The Thursday Murder Club

When it comes to his enviable head of hair, Pierce Brosnan credits the luck of the Irish.

At the premiere of his latest film, The Thursday Murder Club , on Thursday, Aug. 14, the 72-year-old actor, who was born in County Louth, Ireland, revealed his theories behind why he and other Irish men seem to have such great hair.

"It’s all in the hair, the old Celtic hair,” he told Page Six , noting that his father also "had good hair."

Brosnan then joked that Irish sta

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