Low-impedance headphones are in the range 16 to 32 ohms and high-impedance headphones are about 100-600 ohms. As the impedance of a pair of headphones increases, more voltage (at a given current) is required to drive it, and the loudness of the headphones for a given voltage decreases.
Yes, taking to much Vitamin D can cause some people to get diarrhea. Some others may experience constipation from to much Vitamin D.
A Stacy Wiegman, PharmD, Pharmacy, answered. Constipation is a possible side effect of taking too much vitamin D3 (the form of D that the body produces from sunlight). According to the National Institutes of Health's Office of Dietary Supplements, the maximum daily amount of vitamin D3 that people should consume is: