A 102-year-old who runs a business shares her longevity tips, including walking every day [Video]

At 102, Deborah Szekely still works three days a week at the health resort she cofounded over 80 years ago.

Szekely opened Rancho La Puerta in Baja California, Mexico, with her late husband in June 1940. She doesn’t see her age as a reason to change, she told Women’s World in May.

“When nature says, ‘You got to stop Deborah,’ Deborah will stop. Until then, she’ll keep going,” she told CNBC Make It on June 28.

While how long a person lives depends partly on luck and genetics, certain lifestyle choices can extend our healthspan — or how long into our lives we’re healthy and active.

Given that more people are living to 100 than ever before — the number of Americans aged 100 and over is projected to more than quadruple in the next 30 years, according to Pew Research Center — it’s easy to see why longevity is a buzzy topic.

Szekely, who has structured her …