The stage of illness during which a person regains normal health status

Convalescent period.

Explanation:

The word convalescence originates from the Latin convalescentia, which means to regain strength. The recovery time that a person spends after a disease is called convalescence. It is during this period that the body needs to gradually recover from some disease, because your body is returning to normal health. The person who is in the convalescent state is called the convalescent.

Just as each patient has a unique response to the disease, the convalescence period varies with each specific pathology. Other factors such as age and general health of the patient are also taken into account. Because of all these criteria, the idea of convalescence time is very flexible and broad, ranging from just a few days to several months.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .