Here's a piece of info I found on a professional pool/hot-tub website, this should solve your question:
"This depends on the size of the spa and the average daily bather load. Water should be checked three time per week for those using chlorine, bromine or a mineral … Read more
It can harm your ears i you use headphones for a long time. Otherwise listening to music won't cause any harm.
Nice question. Something not many people will think of.
Yes they do. When you are using 6 months braces the appearance of only the front 6 or 8 teeth are improved. In this way they achieve the result in a shorter time span. Rest of the process is the same. The braces used are metal braces similar to one used in regular braces. If … Read more
