1 Secondary insomnia: Secondary insomnia means that a person is having sleep problems because of something else, such as a health condition (like asthma, depression, arthritis, cancer, or heartburn); pain; medication they are taking; or a substance they are using (like alcohol).ypes of Insomnia. There are two types of insomnia: primary insomnia and secondary insomnia. 1  Primary insomnia: Primary insomnia means that a person is having sleep problems that are not directly associated with any other health condition or problem.
Custom fitted mouthguards are expected to last 2-3 years with normal use. Chewing on the mouthguard dramatically reduces the expected longevity. Boil and bite mouthguards should last one season, possibly longer. Stock mouthguards could last several months.
Boil some water and fill the bowl with it to completely cover the mouth guard. Allow the mouth guard to sit for 20 to 30 seconds, until it softens. Remove the mouth guard from the boiling water with the fork and dip it in cold water for three seconds. This allows the guard to cool just enough so you can fit it around your teeth and gums. Bite down on the mouth guard. Seal your lips and suck on the mouth guard hard for 45 seconds to one minute.