They go from "sunbath" in the first paragraph to "extended periods in the sun" in the second. I'm not exactly sure if that mean that the test group itself was

They go from "sunbath" in the first paragraph to "extended periods in the sun" in the second. I'm not exactly sure if that mean that the test group itself was "sunbathing" or were "extended periods in the sun" - but if we assume the latter, then sure: People that go outside to jog or do any other physical activity do live longer than people working inside an office. If they're specific about "sunbathing" I'd like some more information. If "sunbathing" does not include tanning beds then the results do not amuse me either. Swedish people cannot tan during autumn, winter or spring without going on a vacation (either to Swedish mountains or somewhere south). People that can afford a vacation are in general wealthy, and that wealthy people live longer than the average human is something we already know.