(Terry Spencer/ CTV News) — Terry Colli and three other residents of the John Knox Village senior community got a trip via computer to the International Space Station in the kickoff to a Stanford University study on whether virtual reality can improve the emotional well-being of older people.

Donning 1-pound (470-gram) headsets  …

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  …