In meteorology, the term isotherm refers to a contour line that connects points on a weather map that have equal temperatures at a given time. Just as contour lines on topographical maps are used to show gradients of elevation, isotherms are used to show gradients of temperature. Isotherms usually are shown in five- or 10-degree intervals on maps. The temperature differences they delineate are often indicated by different colors. The curve of an isotherm is shaped by variations in temperature across the area being mapped.
Biotin is vital to cell proliferation, which is why it is a valuable tool in hair growth. When ingested, biotin reacts with cell enzymes and plays a vital part in producing amino acids, which are the building blocks of protein.
Biotin is a B-vitamin complex sometimes called Vitamin B7 or Vitamin H. Your body produces it in the intestines and it is also found in foods such as dark green leafy vegetables, nuts and egg yolks. Biotin deficiency can cause hair loss. Biotin promotes hair growth by renewing the hair follicles that are already growing. Biotin supplements in your diet can result in thicker, fuller and healthier looking hair.