As in other mammals, thermoregulation is an important aspect of human homeostasis. Most body heat is generated in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. Humans have been able to adapt to a great diversity of climates, including hot humid and hot arid.
Japanese knotweed is a perennial weed, producing tall canes, up to 2.1m (7ft) in height during the summer. The canes have characteristic purple flecks, and produce branches from nodes along its length. These branches support shovel-shaped leaves.
Fo-Ti contains antioxidant compounds similar to those found in red wine. Fo-Ti, also known as Chinese knotweed, is a perennial vine with broad arrowhead-shaped leaves native to central and southern China. Traditional Chinese medicine uses knotweed to balance energy in the kidney meridian, strengthen bones, prevent hair loss and premature graying, and protect the skin from sun damage.