Adenosine is a molecule that plays a critical role in various physiological processes in the human body. It is a nucleoside composed of adenine and ribose, and it is involved in energy transfer and neurotransmission. Research on adenosine includes studying its effects on the cardiovascular system, the central nervous system, and its potential therapeutic applications. In the cardiovascular system, adenosine is known to have vasodilatory properties, which can help regulate blood flow and lower blood pressure. In the central nervous system, adenosine acts as a neurotransmitter and modulates neuronal activity, affecting processes such as sleep, memory, and pain perception. Additionally, adenosine has been investigated as a potential treatment for conditions such as asthma, arrhythmias, and cancer. Overall, research on adenosine continues to uncover its diverse physiological roles and potential therapeutic uses, making it a key area of interest in biomedical science.