If hyperthyroidism is caused by less production of thyroid-stimulating hormone, then what is caused by less production of thyroid-stimulating hormone?

Answer choices:
- It decreases
 - major threat to health
 - energy usage
 - sweating
 - Localized damage
 - Leptospirosis
 - hyperthyroidism
 - reduced heat

 

       hyperthyroidism   