That is a true statement.
White blood cells help to fight infection
The blood carries these cells
Georgette most probably has hypothyroidism which presents with weight gain, easy fatigability (which Georgette has), as well as other symptoms such as constipation, cold intolerance, and slow and slurred speech. Hypothyroidism is caused by the deficiency of thyroid hormones most commonly caused by iodine deficiency followed by the autoimmune destruction of the thyroid gland called Hashimoto's thyroiditis.