A collective is a group of entities that share or are motivated by at least one common issue or interest, or work together to achieve a common objective. [citation needed] Collectives can differ from cooperatives in that they are not necessarily focused upon an economic benefit or saving, but can be that as well.
Hypothyroidism is a condition that occurs when the thyroid gland does not produce enough thyroid hormones to meet the needs of the body. The thyroid creates two thyroid hormones, triiodothyronine (T3) and thyroxine (T4) that regulate metabolism.
They also affect a person's growth and development. If untreated, hypothyroidism can lead to poor growth, slow speech, loss of energy, weight gain, hair loss, dry skin, and increased sensitivity to cold temperatures. Levothyroxine can help reverse these symptoms.