Depending on your location and gender, you may live to an average of 80, 85, or even 90 years old.

Someday, we might all make it to our Betty White years. That's the gist of a new study published in The Lancet, which found that average life expectancy is likely to keep increasing across the globe. Researchers predict that by 2030, many babies born in industrialized countries can expect to live to an average of 80, 85 or even 90 years old.

Of course, your potential tenure on Earth depends largely on your location. Of the 35 nations analyzed, South Korea is predicted to have the highest life expectancy—almost 91 years for women, and about 84 years for men. Improved childhood nutrition, little smoking, quality healthcare access and education were cited as reasons for the good news. Though no other country breaks the age-90 barrier, Australia, Spain, and Switzerland rank highly for both genders. 

On the other end of the spectrum, Macedonian women should expect to live to an average of 77.8 years old, while Serbian men will likely make it to around 73.4. Bulgaria, Slovakia and Romania join them at the bottom of the study's rankings, though life expectancy is forecasted to rise—especially for men—in each country. 

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