The Public Health | Medical Encyclopaedia

Public Health

Patient's Guide

Public health

The same goes for alcohol and narcotics, like heroin and cocaine. These involuntary erections mean that everything is fine with the nerves, muscles and arteries involved in the erection process, and signals that the cause of impotence is elsewhere.

The focus

No known side effects are linked with this herb. More drastically, inflatable or rigid penile implants may be fitted surgically. The current diagnostic and statistical manual of mental diseases (DSM-IV) has included a listing for impotence.

Modern public health

Impotence, or erectile dysfunction, was once regarded as a man's worst nightmare. Once an erection is achieved, the man places the elastic ring on the base of his penis, which keeps blood from draining from the penis back into the body.

Institutions

These involuntary erections mean that everything is fine with the nerves, muscles and arteries involved in the erection process, and signals that the cause of impotence is elsewhere. Modern drug therapy for ED made a significant advance in 1983, when British physiologist Giles Brindley dropped his trousers and demonstrated to a shocked Urodynamics Society audience his papaverine-induced erection.[30] The drug Brindley injected into his penis was a non-specific vasodilator, an alpha-blocking agent, and the mechanism of action was clearly corporal smooth muscle relaxation. Penile erection is managed by two mechanisms: the reflex erection, which is achieved by directly touching the penile shaft, and the psychogenic erection, which is achieved by erotic or emotional stimuli.

Vaccination

The practice of vaccination became prevalent in the 1800s, following the pioneering work of Edward Jenner in treating smallpox. James Lind's discovery of the causes of scurvy amongst sailors and its mitigation via the introduction of fruit on lengthy voyages was published in 1754

History

Public health - early roots

Public health has early roots in antiquity. From the beginnings of human civilization, it was recognized that polluted water and lack of proper waste disposal spread communicable diseases (theory of miasma).

Latest Researches

Objectives

The focus of a public health intervention is to prevent and manage diseases, injuries and other health conditions through surveillance of cases and the promotion of healthy behaviors, communities and environments. Many diseases are preventable through simple, non-medical methods. For example, research has shown that the simple act of hand washing with soap can prevent many contagious diseases.[4] In other cases, treating a disease or controlling a pathogen can be vital to preventing its spread to others, such as during an outbreak of infectious disease, or contamination of food or water supplies. Public health communications programs, vaccination programs, and distribution of condoms are examples of common public health measures. Measures such as these have contributed greatly to the health of populations and increases in life expectancy.


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