UV causes melanoma which is why we wear sunscreen.

too much UV all at once, you mean. melanoma is not common and face and arms - the regions which receive the most sunlight

a moderate amount of UV stimulates vitamin D production, suppresses inflammation, and turns on DNA repair pathways

	▲	bschwarz an hour ago \| parent [-]
		This moderate amount of UV is enough to accelerate skin aging which is why we wear sunscreen.

wpm 9 hours ago | parent | prev | next [-]

The article explains this concern in the 3rd and 4th paragraph.

nikolay 6 hours ago | parent | prev | next [-]

Wong UV wavelength range! 222nm is safe for humans [0]!

Retz4o4 9 hours ago | parent | prev [-]

Far UVC?