Hormones that stimulate endocrine glands to release other hormones are

thyroid stimulating hormone (TSH)

Hormones that stimulate endocrine glands to release other hormones are thyroid stimulating hormones (TSH).

Explanation:

TSH regulates thyroid gland to produce its hormones like thyroxin and triiodothyronine. This stimulating hormone is responsible for the thyroid gland to help in balancing the metabolism in the body. If your body is secreting less thyroxin then TSH sends signal to thyroid gland to balance the level of thyroxin on the body.So, thyroid stimulating hormone is for the checking of level of hormones in the body to bring it in balance.

Must be spread through human actions alone

Explanation:

Cause it's the only one that isn't true.