After appropriate digestion of nutrients, the function of the gastrointestinal tract is to absorb these nutrients so they may be used for a variety of cellular processes.

Absorption occurs across the cells lining the small intestine and proceeds via one of several mechanisms. The first is passive absorption, in which material moves along an electrochemical gradient. The second is facilitated transport, in which absorption of one substance is coupled to the transfer of another substance. (more…)

The regulation of fluid balance is crucial to survival. Approximately 9 L of fluid enters the gastrointestinal tract per day. Of that amount, about 2 L is ingested by mouth. The remaining 7 L consists of fluids secreted by the various gastrointestinal organs. Ninety eight percent of the total amount of fluid that enters the gastrointestinal tract is reabsorbed in the small intestine and the colon. (more…)

The reduced physiological reserve after the one quoted above includes anatomical changes associated with aging, functional respiratory, urinary tract and gastrointestinal tract. In the case of the respiratory system is well established that the lung function deteriorates with increasing age. Some of the anatomical changes that contribute to loss of function include:

(a) Decline broncheolar average diameter, (more…)

HGH is the current buzz word in anti aging circles. It has gained wide media coverage and is being hailed as the ultimate in anti aging treatments with a whole lot of people claiming it to be the Elixir of Youth.

Human growth hormone naturally occurs in your body and is produced by the pituitary gland that is located in your brain. As the name suggests, it helps human grow. (more…)