The central nervous system depends entirely upon an uninterrupted delivery of oxygen and nutrients through a vast network of specialized blood vessels. At the base of the skull, major cerebral trunks form an interconnected vascular ring that distribute
The human heart is a remarkable muscular pump divided into four distinct chambers—two upper atria and two lower ventricles—that work in synchronized harmony to circulate oxygen-rich blood throughout the body and send deoxygenated blood to t
The human brain is an extraordinarily complex, electro-chemical organ containing roughly eighty-six billion specialized cells called neurons that communicate through constant, highly synchronized electrical impulses and chemical neurotransmitters.
Pulmonary hypertension is a condition in which the blood pressure in the blood vessels that carry blood from the heart to the lungs becomes abnormally high. These blood vessels are called the pulmonary arteries.
Heart block is a condition that affects the heart's electrical system. The heart normally beats in a steady rhythm because electrical signals travel through it in a specific pattern. These signals tell the heart when to contract and pump blood.
Tinnitus is a complex medical condition characterized by the internal sensation of sound—such as persistent ringing, hissing, buzzing, or roaring—in the absence of any corresponding external acoustic stimulus.
Myocarditis is a condition in which the heart muscle becomes inflamed. The heart muscle, also called the myocardium, helps the heart contract and pump blood throughout the body. When it becomes inflamed, the heart may not work as well as it normally do
Sleep is an essential biological state required for tissue repair, emotional regulation, and cognitive restoration. However, for millions of individuals worldwide, this nightly recovery process is repeatedly interrupted by a common yet serious medical
