Biologists at McGill University say that if there is a limit to how old human can live, they haven’t found it.

“We just don’t know what the age limit might be,” Siegfried Hekimi told CBC. “In fact, by extending trend lines, we can show that maximum and average lifespans could continue to increase far into the foreseeable future.”

In fact, centenarians are the fastest growing age group in the country, according to the 2016 census.