Laryngitis can be short-term or long-lasting (chronic). Most of the time, it comes on quickly and lasts no more than 2 weeks. Chronic symptoms are those that last 2 weeks or longer. Check with your doctor if your symptoms last longer than 2 weeks. Your laryngitis may be caused by more severe problems.
Low vitamin D tied to aggressive prostate cancer. As a nutrient, vitamin D is surely essentialâwithout it, we couldnât absorb the calcium and phosphorus we need for healthy bones. But research increasingly points to other benefits from vitamin D. One of these is possible protection against cancer.
Darker skin pigments and sunscreen use can significantly decrease the body's ability to absorb the ultraviolet radiation B (UVB) rays required to produce vitamin D. The sunshine vitamin-vitamin D-can be produced in the body with sun exposure or consumed in food or supplements.A sunscreen with sun protection factor (SPF) 30 can reduce the body's ability to synthesize the vitamin by 95%.ne microgram of vitamin D is equal to 40 IU of vitamin D. The recommended intakes of vitamin D throughout life were updated by the US Institutes of Medicine (IOM) in 2010 and are currently set at: 1  Infants 0-12 months - 400 IU (10 mcg). 2  Children 1-18 years - 600 IU (15 mcg).