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.
1 Vitamin D does not help prevent the common cold. 2  Monthly doses of vitamin D do not help prevent the common cold while daily or weekly dosing does. 3  Levels above 20 ng/ml (92 % of the placebo group) are all that is required to lower the infection rate.onthly doses of vitamin D do not help prevent the common cold while daily or weekly dosing does. Levels above 20 ng/ml (92 % of the placebo group) are all that is required to lower the infection rate. I am unaware of any study that used significant daily doses for an entire winter that was negative..