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.
Dr. Heaney and colleagues recently challenged the IOM's vitamin D recommendation, stating the RDA underestimates the need by a factor of 10. Most vitamin D experts also agree that a serum level of 20 ng/ml is too low for optimal health, which means the requirement for most people is even higher than that. GrassrootsHealth, for example, believes a vitamin D level of 40 ng/ml is a more appropriate minimum level.