11. Unfortunately, about half of those with underactive thyroids do not know they have a definable and treatable problem. 12. The cause of low testosterone is usually a rare condition called hypogonadism, in which the testicles are underactive . 13. The deep-brain area also is underactive in depressed people, perhaps because of overuse, he said. 14. The study compared four versions of levothyroxine, a hormone replacement given to about eight million Americans with underactive thyroids. 15. The left-front part of the brain is underactive or abnormally functioning in people with depression, he said. 16. Hypothyroidism, which involves an underactive thyroid gland and causes mental and physical slowing, was seven times more common. 17. In addition to lingering effects of dysentery and chronic colitis, an underactive thyroid was later revealed during the autopsy. 18. THYROID TESTS : Did you miss out on free tests in mid-November for an underactive or overactive thyroid gland? 19. By comparing the two samples, today's gene chips show which genes are overactive or underactive in each sample. 20. _The cause of diabetes is unknown, but risk factors include being overweight or underactive and having family members with diabetes.
