The left side of your brain controls the muscles on the right side of your body, and it is responsible for language along with logical and mathematical thinking. Meanwhile, the right brain controls the muscles on the left side of your body, and it is associated with spatial reasoning and musical abilities.Know More
Scientists call functions that are dominated by one hemisphere of the brain "lateralized." While the left hemisphere of the brain is specialized for functions like language and mathematical thinking, the right hemisphere also works on these functions to a lesser degree. Scientists primarily determine where brain functions are localized and lateralized through a method called "experimental ablation" in which parts of the brain are selectively damaged; when a function is hampered by damage to a specific area of the brain, it becomes evident that the function in question is performed by that area.
This practice is highly unethical in human subjects, so neuroscientists must rely on clinical studies of people who already have brain damage to determine the localization and lateralization of brain function. One famous case of this that helped elucidate the function of the left brain involved a patient studied by French neurologist Paul Broca. This patient was not physically mute, and he understood language. However, he could not speak or write. Upon autopsy after that patient's death, Broca found that a part of his left brain, now called Broca's area, was damaged. A similar process led to the understanding of a related area in the left brain called Wernicke's area. Patients who have suffered damage to Wernicke's area can speak, but they often speak in ways that do not make sense. They also have trouble understanding language. From clinical studies like these, scientists have determined that most parts of language are carried out by specific areas in the left brain. Similar findings have shown scientists that the left hemisphere of the brain is responsible for mathematical and logical thinking as well as control of the right side of the body.Learn more about Human Anatomy
Abdominal pain on the left side of the body is symptomatic of constipation, muscle problems, sexually transmitted diseases, irritable bowel syndrome, a ruptured appendix or internal organ pain, according to HealthHype.com. Internal organ pain can come from the chest, abdominal wall muscles, intestinal tract, urinary tract or ribs. Fever and dizziness may accompany left abdominal pain in serious cases.Full Answer >
Sleeping on the left side of the body is not harmful to the heart, explains doctors from HealthTap. In fact, there is some evidence sleeping on the left side helps lessen heartburn, and doctors may advise pregnant women to sleep on their left sides because it improves heart circulation, notes WebMD.Full Answer >
Several organs are located on the left side of the body, including the left eye, the left ear, the left lung, the spleen, the left kidney, the bladder, the adrenal gland, the pancreas, the left ureter, the left Fallopian tube and the left ovary. A handful of organs straddle both sides of the body, such as the skin, the nose, the mouth, the brain, the heart, the stomach, the small intestine, the large intestine and the rectum. In males, the left testicle is also considered a left side organ.Full Answer >
Weakness of the left side of the heart is called systolic heart failure and causes a decrease in the amount of blood that is pumped to the body from the heart, explains WebMD. Causes include coronary artery disease, cardiomyopathy, hypertension, aortic stenosis, mitral regurgitation, viral myocarditis and arrhythmia.Full Answer >