Physical healthPhysical fitness refers to body health, and is the result of regular exercise, proper diet and nutrition, and proper rest for physical recovery.
A strong indicator of the health of localized population is its average height or weight, which generally increases with improved nutrition and health care. This is also influenced by the standard of living and quality of life. Genetics also plays a major role in people's height. The study of human growth, its regulators, and implications is known as Auxology
Physical fitness comprises two related concepts: general fitness (a state of health and well-being) and specific fitness (a task-oriented definition based on the ability to perform specific aspects of sports or occupations).
In previous years, fitness was commonly defined as the capacity to carry out the day’s activities without undue fatigue. However, as automation increased leisure time, changes in lifestyles following the industrial revolution rendered this definition insufficient. These days, physical fitness is considered a measure of the body’s ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist hypokinetic diseases, and to meet emergency situations.
Components of physical fitness
The President's Council on Physical Fitness and Sports -- a study group sponsored by the Government of the United States -- declines to offer a simple definition of Physical Fitness. Instead, it developed the following chart[1]:
| Physiological | Health Related | Skill Related | Sports |
|---|---|---|---|
| Metabolic | Body Composition | Agility | Team |
| Morphological | Cardiovascular Fitness | Balance | Individual |
| Bone Integrity | Flexibility | Motor coordination | Lifetime |
| Other | Muscular Endurance | Power | Other |
| Muscle Strength | Speed | ||
| Reaction time | |||
| Other |
Accordingly, a general-purpose physical fitness program must address the following essentials[2]:
- Cardiovascular Fitness
- Flexibility Training
- Strength Training
- Muscular Endurance
- Body Composition
- General Skill Training
However, along with these essential components, a comprehensive fitness program that is tailored to an individual will probably focus on one or more specific skills[3], and on age-[4] or health-related needs such as bone health[5]. Many sources also cite mental and emotional health as an important part of overall fitness. This is often presented in textbooks as a triangle made up of three sub-sections, which represent physical, emotional, and mental fitness. Hence, one may be physically fit but may still suffer from a mental illness or have emotional problems. The "ideal triangle" is balanced in all areas. Physical fitness can also prevent or treat many chronic health conditions brought on by unhealthy lifestyle or aging[6]. Working out can also help people sleep better[citation needed]. To stay healthy it's important to participate in physical activity[7].
Mental health
Mental health describes either a level of cognitive or emotional well-being or an absence of a mental disorder. The World Health Organization defines mental health as "a state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community”.[3] However, despite official definitions, the term mental health, and the question of whether or not an individual is 'mentally well', remains a subjective assessment.
Mental health is a term used to describe either a level of cognitive or emotional well-being or an absence of a mental disorder.[1][2] From perspectives of the discipline of positive psychology or holism mental health may include an individual's ability to enjoy life and procure a balance between life activities and efforts to achieve psychological resilience.[1]
The World Health Organization defines mental health as "a state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community”.[3] It was previously stated that there was no one "official" definition of mental health. Cultural differences, subjective assessments, and competing professional theories all affect how "mental health" is defined.[4]
HistoryIn the mid-19th century, William Sweetzer was the first to clearly define the term "mental hygiene", which can be seen as the precursor to contemporary approaches to work on promoting positive mental health.[5] Isaac Ray, one of thirteen founders of the American Psychiatric Association, further defined mental hygiene as an art to preserve the mind against incidents and influences which would inhibit or destroy its energy, quality or development.[5]
At the beginning of the 20th century, Clifford Beers founded the National Committee for Mental Hygiene and opened the first outpatient mental health clinic in the United States.[5][6]
Perspectives
Mental wellbeing
Mental health can be seen as a continuum, where an individual's mental health may have many different possible values[7]. Mental wellness is generally viewed as a positive attribute, such that a person can reach enhanced levels of mental health, even if they do not have any diagnosable mental health condition. This definition of mental health highlights emotional well-being, the capacity to live a full and creative life, and the flexibility to deal with life's inevitable challenges. Many therapeutic systems and self-help books offer methods and philosophies espousing strategies and techniques vaunted as effective for further improving the mental wellness of otherwise healthy people. Positive psychology is increasingly prominent in mental health.
A holistic model of mental health generally includes concepts based upon anthropological, educational, psychological, religious and sociological perspectives, as well as theoretical perspectives from personality, social, clinical, health and developmental psychology.[8][9]
An example of a wellness model includes one developed by Myers, Sweeny and Witmer. It includes five life tasks — essence or spirituality, work and leisure, friendship, love and self-direction—and twelve sub tasks—sense of worth, sense of control, realistic beliefs, emotional awareness and coping, problem solving and creativity, sense of humor, nutrition, exercise, self care, stress management, gender identity, and cultural identity—are identified as characteristics of healthy functioning and a major component of wellness. The components provide a means of responding to the circumstances of life in a manner that promotes healthy functioning. Most of the US Population is not educated on Mental Health.[10]
Mental health can also be defined as an absence of a major mental health condition (for example, one of the diagnoses in the Diagnostic and Statistical Manual of Mental Disorders) though recent evidence stemming from positive psychology (see above) suggests mental health is more than the mere absence of a mental disorder or illness. Therefore the impact of social, cultural, physical and education can all affect someone's mental health.
Cultural and religious considerations
Mental health can be socially constructed and socially defined; that is, different professions, communities, societies and cultures have very different ways of conceptualizing its nature and causes, determining what is mentally healthy, and deciding what interventions are appropriate.[11] Thus, different professionals will have different cultural and religious backgrounds and experiences, which may impact the methodology applied during treatment.
Many mental health professionals are beginning to, or already understand, the importance of competency in religious diversity and spirituality. The American Psychological Association explicitly states that religion must be respected. Education in spiritual and religious matters is also required by the American Psychiatric Association.[12]
Determinants of health
The LaLonde report suggests that there are four general determinants of health including human biology, environment, lifestyle, and healthcare services.[4] Thus, health is maintained and improved not only through the advancement and application of health science, but also through the efforts and intelligent lifestyle choices of the individual and society.
A major environmental factor is water quality, especially for the health of infants and children in developing countries.[5]
Studies show that in developed countries, the lack of neighborhood recreational space that includes the natural environment leads to lower levels of neighborhood satisfaction and higher levels of obesity; therefore, lower overall well being.[6] Therefore, the positive psychological benefits of natural space in urban neighborhoods should be taken into account in public policy and land use.
Maintaining health
Achieving health and remaining healthy is an ongoing process. Effective strategies for staying healthy and improving one's health include the following elements:
Social Activity
Personal health depends partially on the social structure of one's life. The maintenance of strong social relationships is linked to good health conditions, longevity, productivity, and a positive attitude. This is due to the fact that positive social interaction as viewed by the participant increases many chemical levels in the brain which are linked to personality and intelligence traits.
Sports nutrition
Sports nutrition focuses the link between dietary supplements and athletic performance. One goal of sports nutrition is to maintain glycogen levels and prevent glycogen depletion. Another is to optimize energy levels and muscle tone. An athlete's strategy for winning an event may include a schedule for the entire season of what to eat, when to eat it, and in what precise quantities (before, during, after, and between workouts and events).
Hygiene
Hygiene is the practice of keeping the body clean to prevent infection and illness, and the avoidance of contact with infectious agents. Hygiene practices include bathing, brushing and flossing teeth, washing hands especially before eating, washing food before it is eaten, cleaning food preparation utensils and surfaces before and after preparing meals, and many others. This may help prevent infection and illness. By cleaning the body, dead skin cells are washed away with the germs, reducing their chance of entering the body.
Stress management
Prolonged psychological stress may ngatively impact health, such as by weakening the immune system and mind. Stress management is the application of methods to either reduce stress or increase tolerance to stress. Relaxation techniques are physical methods used to relieve stress. Psychological methods include cognitive therapy, meditation, and positive thinking which work by reducing response to stress. Improving relevant skills and abilities builds confidence, which also reduces the stress reaction to situations where those skills are applicable.
Reducing uncertainty, by increasing knowledge and experience related to stress-causing situations, has the same effect. Learning to cope with problems better, such as improving problem solving and time management skills, may also reduce stressful reaction to problems. Repeatedly facing an object of one's fears may also desensitize the fight-or-flight response with respect to that stimulus—e.g., facing bullies may reduce fear of bullies.
Prolonged hours of surfing on the Internet is a major concern that can affect the eyes significantly.[citation needed] White backgrounds on computer screens with a viewing distance of less than 14 inches is known to increase strain, mental fatigue and temporary di-chromatic visions in a normal healthy human being. Trying to opt for black or any non-white backgrounds can help in reducing eye strain in front of PCs.[citation needed]
Health care
Health care is the prevention, treatment, and management of illness and the preservation of mental and physical well being through the services offered by the medical, nursing, and allied health professions.
Workplace wellness programs
Workplace wellness programs are recognized by an increasingly large number of companies for their value in improving the health and well-being of their employees, and for increasing morale, loyalty, and productivity.[citation needed] Workplace wellness programs can include things like onsite fitness centers, health presentations, wellness newsletters, access to health coaching, tobacco cessation programs and training related to nutrition, weight and stress management. Other programs may include health risk assessments, health screenings and body mass index monitoring.
Public health
Public health is "the science and art of preventing disease, prolonging life and promoting health through the organised efforts and informed choices of society, organizations, public and private, communities and individuals."[citation needed] It is concerned with threats to the overall health of a community based on population health analysis. The population in question can be as small as a handful of people or as large as all the inhabitants of several continents (for instance, in the case of a pandemic). Public health has many sub-fields, but is typically divided into the categories of epidemiology, biostatistics and health services. Environmental, social and behavioral health, and occupational health, are also important fields in public health.
The focus of public health intervention is to prevent rather than treat a disease through surveillance of cases and the promotion of healthy behaviors. In addition to these activities, in many cases treating a disease can be vital to preventing it in others, such as during an outbreak of an infectious disease. Vaccination programs and distribution of condoms are examples of public health measures.
Role of science in health
Health science is the branch of science focused on health, and it includes many subdisciplines. There are two approaches to health science: the study and research of the human body and health-related issues to understand how humans (and animals) function, and the application of that knowledge to improve health and to prevent and cure diseases.
Sources
Health research builds primarily on the basic sciences of biology, chemistry, and physics as well as a variety of multidisciplinary fields (for example medical sociology). Some of the other primarily research-oriented fields that make exceptionally significant contributions to health science are biochemistry, epidemiology, and genetics.
Application
Applied health sciences also endeavor to better understand health, but in addition they try to directly improve it. Some of these are: biomedical engineering, biotechnology, nursing, nutrition, pharmacology, pharmacy, public health (see above), psychology, physical therapy, and medicine. The provision of services to maintain or improve people's health is referred to as health care (see above).
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