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.
Japanese knotweed-an excellent source of the potent antioxidant resveratrol-is a plant that is characterized by its hollow stems and its wide, oval-shaped leaves.The Japanese knotweed plant also grows a profusion of small, white flowers during the late summer and early fall.roviding a more concentrated source of resveratrol, Japanese knotweed is preferred over grape skins by many dietary supplement manufacturers. Unlike grapes, Japanese knotweed can be grown year round, allowing manufacturers to have a consistent source of resveratrol for their pills.