Homeostasis: The balance of life

Definition Homeostasis
Homeostasis can be defined as the equilibrium necessary for the maintenance of life.

Homeostasis is the maintenance of internal environmental variables (pH, temperature, concentration of ions, oxygen, carbon dioxide, glucose) in static or constant dynamic equilibrium conditions (constant renewal and homogenization).

The ability to restore homeostasis, is what gives us health.
The body should remain within physiological levels, where the cells and metabolic reactions can occur. To this end, our systems are constantly acting in order to maintain this situation. Not mean that we are always in the optimum value, but within certain ranges (in some tight places) where the maintenance of life is possible and where continuously subject to change.

What is needed for homeostasis
- An optimal concentration of gases, nutrients, ions and water.
- An optimum temperature
- A volume determined for healthy cells.

Sometimes we think that a balance is represented by something in static and continuous, as could be the drawing of a balance. But actually talking about life balance, is a continual need to adapt precisely to our environment and ensure survival.

A drawing that would represent well this balance might be a swing line, where we find a process that begins and ends at some point, giving rise to another phase. Not necessarily we have to refer them to a life we can also use this example for the day. Everything is adapted around an axis of health, where we can get away both up and down, ie, upwards or downwards.

As damaging can be a cause or another. Each will have specific signs and symptoms, although both sides will share the remoteness of health, and in some cases is very high if it can be so severe as to be irreversible.

Symptoms of imbalance
Normally our body is prepared to be constantly balancing all the processes and when we overdo it gives us warnings: pain, fatigue, sleepiness, apathy, demotivation, fever ... We may be many other symptoms. In any case, it is time to consider and analyze our pace of life (exaggerated or nonexistent) in order to really change and not fall into the "absence of homeostasis", ie "health" usher in disease, or even be death.

Feedback Systems
To achieve this homeostasis, we must not only look at the physical or organic. To be well, since we are a whole have to work also mental and social health. Both, along with the first form being and inner set of reactions and the outside will help us find our balance. We can not separate the emotions of biochemistry.

The main systems that regulate and warn us, are the nervous and endocrine systems. Thanks to the feedback systems: course of events in which information on the status of the situation is constantly monitored and sent back to a central control.

It consists of three basic components:
- Control center. Place where state information is received and biochemical levels of the organism and as we are working in a particular way or another. For example, information will be constant and permanent action: heart rate, blood pressure, acidity of the blood, the blood glucose level, temperature and respiratory rate. The point where you have to keep the body is called "controlled condition.

- Receiver. Responsible for incorporating the information coming from the various changes that occur in different parts of the body and send results through what called an afferent input, the control center. Any stress can alter a condition called controlled stimulus. Once the stimulus is picked up (needed a certain threshold), the process of afferents can not be stopped, it would work like a zipper that you have to get to the end. Nerve impulses are sent to the control center in the brain. I should reach the cerebral cortex to become conscious.

- Effector. Receive a message that comes from the control center called efferent impulse (as mnemonic can be used leaving the brain or spinal cord), and produces a response (effect).

The answers given are:
- Reversing the original stimulus: negative feedback.
- Enhance the original stimulus: positive feedback.

Virtually all feedback systems in our body are negative (braking), as positive (increase), can be destructive and lead to various abnormalities, but no less necessary at certain times. As an example, the time of delivery, where information is given, it is no brake on the contractions but this increases to give birth.

The other organs and apparatus are also involved in homeostasis: respiratory, gastrointestinal, annexed glands, urinary, lymphatic system, muscles and tissue fillers, etc.. depending on features, use, wear, rest, etc.. may continue to function well, and give us the necessary stimuli and sensations that systems integrators and the regular recurrence can be continually re-balance. This is what is called allostatic systems.

Related Topics
Emotions, Illness and Dopamine
The laws of healing through food
Psychology: Unit psyche-soma
Acidic foods. Consequences

*Automatic Translation