👉 Underhid is a term used in the medical field to describe a condition where there is no blood flow to the muscles and tendons of the body. This can occur due to various reasons, such as a lack of oxygen or nutrients, inflammation, or muscle injury. It is often associated with conditions like chronic fatigue syndrome, which involves a lack of energy and reduced physical activity. Underhid can also be caused by certain medications, such as those used in chemotherapy, where the body may not be able