The study seems to be incredibly flawed.

> Women with active sun exposure habits were mainly at a lower risk of cardiovascular disease (CVD) and noncancer/non-CVD death

Not surprised there because people who spend more time outdoors will typically be participating in physical activity at the same time, while people who avoid sun exposure will typically be seated while participating in sedentary activities.

If we want to see if sun exposure is the sole reason for longevity, we will have to force the subjects to sit on a couch outside.

Claiming that not getting sunlight is the same as smoking is pure garbage.