Acceptance Rate By Year. 1  2009-2010: 27.8%. 2  2010-2011: 22.3%. 3  2011-2012: 19.4%. 4  2012-2013: 18.4%. 5  2013-2014: 18.1%. 6  Projected JHU Acceptance Rate 2017-2018: 19.6%.
Allostasis is the process of achieving stability, or homeostasis, through physiological or behavioral change. This can be carried out by means of alteration in HPA axis hormones, the autonomic nervous system, cytokines, or a number of other systems, and is generally adaptive in the short term (McEwen & Wingfield 2003).
Homeostasis is the technical term for the biological process in which the many functions of the body are regulated to achieve internal equilibrium or balance. To put it in the simplest form, the process of homeostasis is what causes a living creature to operate within a range of consistent values.