With some exceptions, in general we're much likely to be indoors nowadays than say... 300 years ago, regardless of how much sunlight is available. But it is hyp

With some exceptions, in general we're much likely to be indoors nowadays than say... 300 years ago, regardless of how much sunlight is available. But it is hypothesized that people of color see higher frequencies of epithelial related diseases (high blood pressure, heart disease) because we're mostly indoors nowadays and the shorter stints outside aren't long enough to absorb enough sunlight through darker skin. Epidemiologists have typically assumed this is due to socio-economic reasons, but even in affluent black communities, we're still seeing outsized incidences of these disease than in "lighter shade" communities.