It is two minutes at 85°F hope this helps
The reason that you can tell that it was chemical is because you can see the bubbles forming. This means that it is giving off a gas.
Being inactive can lead to fatty material building up in your arteries (the blood vessels that carry blood to your organs).
It's important because, you need to a valid source for a health situation. It could cause more than good if you don't know if the health source is not true.