Attrition is the slow bleeding down of someone or some entity. It's the proverbial "death by a thousand duck nibbles." Not only does attrition diminish effectiveness and strength, it does it in a protracted way. Attrition is the gradual sucking of life and vitality from a person or an organization. The downward pressure is relentless.
Negativity is the foot soldier of attrition. Positivity is the combatant of attrition.
The good news is...
we can choose how we think,
we can choose what we read,
we can choose what we listen to, and
we can choose who we associate with.
Attrition is reversible. It's all about the inputs (which, of course, we get to choose).