Light Therapy Affect Circadian Rhythm Controlling Sleep Cycle

Living organism features a number of internal rhythms that control many functions. Some rhythms are short, like a cycle of sleep that lasts 60-120 minutes. Other cycles are longer like the cycle. The biological time features a cycle length of around 24 hours, and is that the rhythm that controls most body functions, ensuring that things add an equivalent way at an equivalent time every day. the foremost obvious things the biological time controls are wake, sleep, activity and appetite. However, recent research has shown that nearly all body functions are regulated by the circadian system. Light are often utilized in treating biological time disorders. Bright Light Therapy (BLT) is effective and recognized as a first-line therapeutic modality. BLT increasingly also used as an experimental treatment in unipolar and bipolar depression and other psychiatric disorders within the circadian system.