It is a sedimentary deposit<span> of mineral particles which are finer than sand but coarser than dust or clay,</span>deposited<span> by the wind. </span>Loess<span> is a type of silt which </span>forms<span> fertile topsoil in some parts of the world. ... The soil has few clay particles to hold it together.</span>
Answer:
melatonin
Explanation:
Oxytocin is called a peptide hormone and is normally produced in the hypothalamus, it's released by the posterior pituitary gland. It usually plays a role in social bonding, reproduction, childbirth, and the period after childbirth.
Serotonin is a monoamine neurotransmitter. It plays a vital role in feelings of well-being and happiness. it helps in mental cognition, reward, learning, memory, and numerous physiological processes.
The prostaglandins are groups of physiologically active lipid compounds called eicosanoids having diverse hormone-like effects in animals. It participate in a wide range of body functions such as the contraction and relaxation of smooth muscle, the dilation and constriction of blood vessels, control of blood pressure etc.
Melatonin is a hormone that regulates the sleep–wake cycle. It is primarily released by the pineal gland. As a supplement, it is often used for the short-term treatment of trouble sleeping.
Definitely, if the sleep scientist is working on developing a drug for people who lack proper amount of sleep hormone, He should be working on Melatonin.