For instance, rheumatoid arthritis occurs when immune antibodies attack the joints,
leading to serious pain and swelling; Hashimoto's
disease is an autoimmune thyroid condition, which
eventually causes fatigue, depression, and weight gain (among other symptoms); while for those with ulcerative colitis and Crohn's
disease, the intestinal tract becomes severely inflamed.
Periodontal
disease can
lead to more
serious bacterial infections that
eventually damage the liver, kidneys, heart, and other organs.