The Internal Body Clock or Circadian Rhythm

Circadian rhythm is an internal circadian clock that controls mental and biological processes over 24 hours. Circadian is the Latin word "about 24 hours" means. Circadian rhythms are triggered by clues such as sunrise and sunset, and other visual cues such as clocks and television programs. The human circadian clock is a lump of cells in the suprachiasmatic nucleus (SCN), the hypothalamus (internal region of the brain), and responds to light and dark signals.

The body clock is also called circadian rhythm and tends to be overlooked, but it is very important for the health of the heart. This is the mechanism by which the body regulates sleep and feeding patterns, deep body temperature, brain wave activity, hormone production, levels of glucose and insulin, cell regeneration and many other biological activities. It is responsible for adjusting two important hormones: melatonin and cortisol. Melatonin is secreted from the pineal gland in the brain. Darkness stimulates blood production, usually lasting about 12 hours from around 9 pm. Cortisol, also known as "stress hormone", is produced by the adrenal glands. Since most somatic cells have cortisol receptors, they affect various functions in the body. Cortisol helps regulate blood glucose levels, regulate metabolism, alleviate inflammation, and adjust salinity and moisture balance, and adjust blood pressure.

Essential factors to play an important role in sleeping for everyone are also known as circadian rhythm, 24-hour clock, and circadian pacemaker. Circadian rhythms are characterized by thermocirculation and hormone secretion, emotional and cognitive abilities are most obviously influenced by sleep and wake cycles and circadian rhythm and are influenced by external environment and social cues. Therefore, circadian rhythms and any changes in circadian rhythms of external cues or transposition systems can cause circadian rhythm sleep disorder (CRSD) (Lu & Zee, 2006). Circadian rhythm determines sleeping time and arousal, and over time, preferred sleeping time and changes in arousal are gradually delayed (Dijk, Duffy, & Czeisler, 2000). This shows the importance of circadian rhythm in the sleeping pattern of aging

Circadian rhythm is an internal circadian clock that controls mental and biological processes over 24 hours. Circadian is the Latin word "about 24 hours" means. Circadian rhythms are triggered by clues such as sunrise and sunset, and other visual cues such as clocks and television programs. The human circadian clock is a lump of cells in the suprachiasmatic nucleus (SCN), the hypothalamus (internal region of the brain), and responds to light and dark signals.