Low Molecular-Mass Hormones: Peptidic and Steroidal Hormones

Hormones are chemical messengers released by endocrine glands into the bloodstream to regulate various functions like metabolism, growth, reproduction, and responses to stress. These signaling molecules, which can be lipid, amide, or peptide-based, act slowly over time to influence many bodily processes. The endocrine system, including glands such as the hypothalamus and pituitary gland, coordinates these functions by sending signals to target cells. In contrast, exocrine glands release substances through ducts, such as those in the digestive system. Proper hormonal balance is crucial for health, as imbalances can lead to a range of diseases affecting overall well-being.