“It is not until the level of the terrestrial vertebrates—amphibians, reptiles, birds, and mammals—that a complete immune system with thymus, spleen, bone marrow, and lymph nodes is present and IgM and IgG antibodies are made. Antibodies of the IgA class are found only in birds and mammals, and IgE antibodies are confined to mammals. So it appears that the most primitive devices for producing specific, acquired immunity gradually diversified to meet the new environmental hazards as animals moved out of the sea onto the land.”-From the article in the link below.

Britannica.com

https://www.britannica.com/science/immune-system/Evolution-of-the-immune-system

MAMMALS HAVE A SUPERIOR ANCIENT IMMUNE SYSTEM INHERENT IN THE BODY THAT NOTHING OUTSIDE OF THE BODY CAN RIVAL!!

MAMMALS HAVE A SUPERIOR ANCIENT IMMUNE SYSTEM INHERENT IN THE BODY THAT NOTHING OUTSIDE OF THE BODY CAN RIVAL!!

MAMMALS HAVE A SUPERIOR ANCIENT IMMUNE SYSTEM INHERENT IN THE BODY THAT NOTHING OUTSIDE OF THE BODY CAN RIVAL!!

MAMMALS HAVE A SUPERIOR ANCIENT IMMUNE SYSTEM INHERENT IN THE BODY THAT NOTHING OUTSIDE OF THE BODY CAN RIVAL!!

MAMMALS HAVE A SUPERIOR ANCIENT IMMUNE SYSTEM INHERENT IN THE BODY THAT NOTHING OUTSIDE OF THE BODY CAN RIVAL!!

IT HAS BEEN PROVEN OVER AND OVER IN LAB STUDIES THAT EVERY EMOTION AND THOUGHT HUMANS DWELL ON GOES INTO OUR CELLS AND AFFECTS OUR IMMUNE SYSTEMS. ONE OF THE GREATEST OFFENSIVE ACTION YOU CAN TAKE ON BEHALF OF YOUR HEALTH IS TO FEEL POSITIVE, THINK POSITIVE, DO WHAT FLOATS YOUR CORK AND TURN OFF OR TUNE OUT THE FEAR AND HATE MONGERS.