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).
1 Direct contributions. 2  You can add after-tax dollars to your HSA, and so can your family and friends. 3  These HSA contributions arenât tax-free, but they can be deducted on your tax return. 4  You may want to your tax advisor to see if you qualify for an above-the-line tax deduction. 5  Employer contributions.f you qualify, you, your employer, and your friends and family can contribute funds to your HSA. The funds contributed to your HSA arenât taxed, and making regular contributions will allow your HSA balance to grow over time.