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).
Contribution Limits for HSAs. If you sign up for an HSA and youâre under 55, you can put in up to $3,250 this year for an individual account and as much as $6,450 for a family plan. The maximums are $4,250 and $7,450 for people over 55.