Old-age - The Third Age

The maximum duration of the life in the mammalias is on or about the sextuple of the period of increment, that which mean in the man 120 years, since anatomically it is given had concluded the increment with the welding of the epíficis of the long bones of the extremities, fact that happen in the the 20 year-old man alredeor. But this is only the theoretical form of defining the maturity. The man generally dies for cancer or other illnesses.

All ésto takes to that different authors have your respective conclusions about the determination of the period of the old-age, but in all ways it is patent that you are not convenient to be axiomatic in this issue. The involución sometimes begins to ages very different, even for individuals subject to the same conditions of life, emotions, power supply, work, etc.
You have also been observed that in many families there is a predisposition to age prematurely and in other, on the contrary, the fenómenoss involutivos makes your appearance belatedly and they reach very advance ages.

They influence in the beginning of the old-age, apart from the incidence in the individual of certain pathologic processes, the interpretation that each person gives to the ageing, as well as the image that subjectively have of the ancianidad.

Excluded the childhood, the mortality that are relatively low among the youths, ascends slowly toward the groups means and you reach the summit between the 65 and the 75 years of age. On the contrary, in the underdeveloped countries, you are an enormous infant mortality and you are a fixed proportion of people that you/they die in each time unit and you give place to some much more smoothed mortality curves.

They are well many the autore that consider that the start of the phenomena of the senescencia has an etiologic take-off in the degenerative processes, of an organ, well of a system.

The alteration in the hormonal secretion of the glands endócrinas, especially your decrease, you have allowed to elaborate diverse hypothesis explaining the lawsuits of the ageing. This way, the atrophy of the sexual glands and the consistent ullage of hormonal secretion was interpreted like lawsuit of the senility.

You were a biologist and Russian surgeon, Voronoff, who at the beginning of the XX century, in a trip for Muslim countries observed the precocious old-age of the eunuchs and your death to early ages; you related these facts with the ablation of your testicles, you conceived the possibility from a therapy substitute inhertando genital glands coming from young primates to aged people, you achieved with it some successes that popularized your theories extraordinarily.
Later on it proceeded also to implant the gland thyroid and the hypophysis at the same time that the genital ones, with that which seemed to come closer more to remedy the bugs that accuse in the hormonal order the aged organism.
You are verified indeed in the senescencia a hipotiroidismo syndrome, with a decrease of the basal metabolism, dry and cold skin, accented sensibility to the cold, dilatory cerebración, memory leak, hypercholesterolemia, etc., that they translate a hipofunción of the thyroid with atrophy of the gland, returning the symptomatology with the implantation of fresh glandular tissue or with the management of the hormone.

Dwarfism or Achondroplasia

The increment comes defined by an increase estatural and ponderal: the boy when growing, gains weight and you increase your stature. Keeping in mind that in the man they are germane also the laws of the physics and of the chemistry, in the period of increment a prevalence of metabolic anabolic or constructive phenomena would exist, on the catabolic or destructive.

Conjointly with the increment, you take place the development or maturation. The adult not only differs of the boy for your different stature, but also for your morphology, physiology and psyche. With the increment they vary the proportions coeporales, they atrophy certain víceras or systems (I cheat, lymphatic system, etc.) and they grow and other organs enter in feature, as the sexual glánduilas that are petty in the childhood and they are totally inactive. The increment and entry in feature of the sexual glands take place in the puberty; but you should not forget that this is not nothing else that a phase of the increment and of the development. The esuqeleto and the musculature also suffer a very patent development in the path of the increment.

Usually, in the mature age, in the male, they are given like normal sizes the understood ones between 1,65 and 1,85 m. If the stature is understood between 1,45 and 1,65, you are spoken of hipocrecimiento and, when you are inferior to 1,45 m., you are spoken of dwarfism. The understood ones between 1,85 and 2 m. they are described as hipercrecimiento; and the higher ones to 2 m., of gigantismo.

In the feminine sex the figures are something inferior. The statures from 1,55 to 1,70 m. they are considered normal. In the feminine hipocrecimiento, the size is inferior to 1,55 m., and in the hiper increment, higher to 1,70 m. When you are inferior at 1,35 or higher at 1,85 we are respectively in front of a dwarfism or gigantismo.

As for the lawsuits of the dwarfism, we should name in the first place, the deficit of increment of lawsuit genetics. The inheritance weighs in great way on the size of the fellows.

It can also retard the increment the insufficient power supplys, so much quantitative as qualitatively. During the increment the anabolic (constructive) phenomena should prevail, on the catabolic (destructive) ones: the earnings should be higher to the forfeitures. Keeping in mind that the material constructive bñasico of the alive metria is the proteins, you are the protean deficit in the power supply the one that more rebounds on the increment. Among the insufficient power supplys the hipovitaminósicas should be included qualitatively; some infantile avitaminosis, as the rachitis, they give place to important hipocrecimiento.

Separate, the foods should be well digested and absorbed in the digestive system and they should arrive to the tissues and being taken advantage by the cells. You are also indispensable that the tissues don't suffer of anoxia that you/they usually breathe.

The illnesses endócrinas, I eat the infantile hipofuncionales of the lobe previous of the hypophysis and the hipotiroidismo for example, they also give place to the dwarfism.