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).
For 2015, the maximum contributions to your HSA, including any made by your employer to your account, are $3,350 for individual coverage and $6,650 if you have family coverage. If you turn age 55 or older in 2014 or after, you may add up to $1,000 more as a catch-up contribution.