[ Problem Point ]
Poor health due to lack of vitamin D.
[ ⇒Kaizen Point ]
Exposure to ultraviolet rays (UV-B) with a wavelength of around 300 nm for about 10 minutes a day,
Vitamin D was synthesized in the skin and the physical condition improved.
in Ultraviolet light Best Applications List, Chemical, Laboratory
Poor health due to lack of vitamin D.
Exposure to ultraviolet rays (UV-B) with a wavelength of around 300 nm for about 10 minutes a day,
Vitamin D was synthesized in the skin and the physical condition improved.