Negativity at any level breeds toxicity. Negative influences deplete energy. Consistent negativity in your personal and/or professional life will wear you down, without question. Ongoing negativity in your world can affect your health and well-being.  It is up to you and only you to choose to shut down negativity in your world and only allow positive people and influences. It is up to you to choose a positive path in life no matter what challenges you face.