The auditory system changes a wide range of weak mechanical signals into a complex series of electrical signals in the central nervous system. Sound is a series of pressure changes in the air.
Itâs Not Too Late to Maximize Your 2016 HSA Contributions: Contribute Until April 17, 2017. One of the big pros of enrolling in a high-deductible health plan is that it is paired with a Health Savings Account (HSA).
Determining your contribution. Your eligibility to contribute to an HSA is determined by the effective date of your HDHP coverage. If you do not have HDHP coverage for the entire year, you will not be able to make the maximum contribution. All contributions (including catch-up contributions) must be pro-rated.