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).
These contribution limits are according to IRS Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans. You can make HSA contributions for any calendar year until April 15 of the following calendar year, (or the date your personal taxes are due), the same as IRA contributions.