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).
When you enroll in a qualifying high-deductible health plan and open an HSA before the first day of December, you can contribute the total allowable amount for that year. To take advantage of the tax savings, however, you must: