Sampling from biological aging definitions: Brunet Lab, Cell, 2019

Our next definition comes from the Cell Review paper The Genetics of Aging: A Vertebrate Perspective by the Brunet Lab at Stanford:

Aging is the progressive decline in functional integrity and homeostasis, culminating in death.

Commentary: definition attempt consists of 5 distinct propositions in total:

1. Aging is a decline.

2. Aging is a progressive decline.

3. Aging is a progressive decline in functional integrity.

4. Aging is a progressive decline in homeostasis.

5. Aging culminates in death.