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 is a plant native to China; extract from the root is also known as Shou Wu Pian and Chinese climbing knotweed extract. The plant itself is also known as fleeceflower, Himalayan fleece vine, monkey fungus, monkeyweed, Japanese bamboo, and a number of other names.