This WGU C458 Health, Fitness and Wellness 2026/2027 study guide contains 250+ questions, answers, definitions and essential exam concepts across 58 pages. It provides extensive preparation for C458 Health, Fitness and Wellness, covering nutrition, vitamins and minerals, eating disorders, drug use and pharmacology, mental and emotional health, stress management, death and grieving, aging, infectious diseases, immunity, sexually transmitted infections, chronic diseases and cancer. The question-and-answer structure is designed for rapid review of terminology as well as broader understanding of health and wellness principles assessed in the course.
The nutrition and dietary-health section provides detailed coverage of undernutrition, malnutrition, obesity and eating disorders including anorexia nervosa, bulimia and binge-eating disorder. Students review carbohydrates, proteins, amino acids, lipids, triglycerides, cholesterol, HDL and LDL, saturated and unsaturated fats, dietary fiber, glucose and glycogen. The guide also examines major and trace minerals, antioxidants, water, fat-soluble vitamins A, D, E and K, and water-soluble B-complex vitamins and vitamin C, connecting individual nutrients with their roles in metabolism and normal physiological functioning.
A major section examines drugs, substance use and pharmacological principles. Core concepts include routes of administration, distribution, dosage, threshold and effective doses, therapeutic index, potency, synergism, antagonism, tolerance and physical versus psychological dependence. Drug categories covered include depressants, stimulants, narcotics and hallucinogens, alongside material on alcohol, nicotine, caffeine, amphetamines, cocaine, inhalants and other psychoactive substances. This gives students both conceptual vocabulary and examples needed to distinguish drug actions and their health consequences.
The mental and emotional health material covers mental illness, major depressive disorder, self-esteem, self-actualization, learning disabilities, ADHD, obsessive-compulsive disorder, panic disorder and depression. Students also review psychological defense mechanisms such as compensation, displacement, projection, rationalization, regression, repression and sublimation. The guide connects these concepts with emotional functioning, childhood behavioral indicators and approaches to maintaining psychological well-being.
Another important section addresses stress, coping, death, dying and grief. Students distinguish eustress from distress and examine stressors, homeostasis, epinephrine and the three phases of the General Adaptation Syndrome: alarm, resistance and exhaustion. Thanatology content includes the Kübler-Ross stages, Corr's coping approach, bereavement, mourning, disenfranchised grief and Worden's grieving tasks. The material additionally reviews hospice care, advance directives, living wills and health-care power of attorney.
The guide provides substantial coverage of aging and older-adult health, distinguishing biological, psychological, social, legal and functional age as well as young-old, middle-old and old-old classifications. Important age-associated conditions include osteoporosis, osteoarthritis, urinary incontinence, cataracts, glaucoma, macular degeneration, sarcopenia, dementia and Alzheimer's disease. Medicare, Medicaid, gerontology, ageism, comorbidity and respite care are also included, broadening the material beyond disease to social and health-care aspects of aging.
The infectious disease and immunity section explains pathogens, endogenous and exogenous microorganisms, virulence, antigens, vaccination and acquired immunity. Students compare viruses, bacteria, rickettsias, fungi, protozoa and helminths and review stages of disease from incubation through recovery. Specific conditions include influenza, measles, rubella, hepatitis, tuberculosis, pneumonia and meningitis, while the immune-system material introduces antigen recognition, antibodies and phagocytosis.
Sexual and reproductive health topics include chlamydia, gonorrhea, syphilis, genital herpes, HPV, genital warts, candidiasis, trichomoniasis, HIV and AIDS. The guide also extends into chronic and noncommunicable conditions such as asthma, emphysema, bronchitis, sleep apnea, epilepsy, Parkinson's disease, multiple sclerosis, diabetes mellitus, arthritis, lupus, fibromyalgia and gastrointestinal disorders. Cancer terminology includes neoplasms, benign and malignant tumors, metastasis, carcinogens, oncogenes, biopsy, PSA testing, Pap testing, MRI, CT, radiotherapy and chemotherapy.
Relevant students:
This document is especially relevant for Western Governors University students enrolled in C458 Health, Fitness and Wellness, including students preparing for course assessments or comprehensive health and wellness examinations. It can also support nursing, health science, healthcare, education and general wellness students who need concentrated revision of nutrition, mental health, substance use, stress, infectious disease, immunity, aging, chronic disease and cancer concepts.
Keywords:
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Content preview
WGU C458 Health, Fitness and
Wellness 2026/2027 Expert
Verifed Ace the Test
Nutrition - ANSWER ✔✔provides the body with the nutrients it needs
to perform its daily tasks
Undernutrition - ANSWER ✔✔implies that the individual is not getting
enough nutrients. This can occur even if the person is consuming more
than enough calories
Malnutrition - ANSWER ✔✔an imbalance of proper nutrients
Anorexia nervosa - ANSWER ✔✔literally means loss of appetite, but
this is a misnomer: A person with this is hungry, but denies the hunger
,because of an irrational fear of becoming fat. Self-starvation, food
preoccupation and rituals, compulsive exercising, and often an absence
of menstrual cycles in women.
Untreated, can be fatal.
Bulimia - ANSWER ✔✔characterized by recurring periods of binge
eating, during which large amounts of food are consumed in a short
period of time followed by purging (through self-induced vomiting, abuse
of laxatives and/or diuretics) or periods of fasting
Binge eating disorder (BED) - ANSWER ✔✔episodes of binge eating
characterized by eating rapidly, eating large amounts of food even when
not feeling hungry, and feeling guilty or depressed after overeating.
Obesity - ANSWER ✔✔15 to 20 percent above normal weight. Poor
dietary patterns; include increased intake of sugars in sweetened soft
drinks, foods, and meals of high energy, low nutrient density, and large
portion sizes. At risk for serious health problems such as type 2
diabetes, hypertension, heart disease, stroke, and some types of cancer.
Minerals - ANSWER ✔✔inorganic material. Form body parts (teeth
and bones), maintain acid-base neutrality, regulate nerve impulses,
osmotic pressure, and electrolyte balance
,Major minerals - ANSWER ✔✔needed by the body:
• calcium—milk, cheese, sardines, salmon, green vegetables
• phosphorus—milk, cheese, lean meat
• potassium—oranges, bananas, dried fruits
• sulfur—eggs, poultry, fish
• sodium—table salt, beef, eggs, cheese
• chloride—table salt, meat
• magnesium—green vegetables, whole grains
Trace minerals - ANSWER ✔✔required in lesser amounts, and
include iron, zinc, selenium, magnesium, copper, iodine, fluorine,
chromium, molybdenum, and manganese
HDL cholesterol (high density lipoproteins) - ANSWER ✔✔protect the
body against heart disease. Often called "good" cholesterol.
LDL cholesterol (low density lipoproteins) - ANSWER ✔✔most
cholesterol in the blood is of this type. Often referred to as the bad
cholesterol. high levels in the blood increases the risk of fatty deposits
forming in the arteries, which in turn increases the risk of a heart attack
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, Lipoproteins - ANSWER ✔✔large molecules of fat and protein in the
bloodstream; how cholesterol is transported
Antioxidants - ANSWER ✔✔slow the aging process. Reduce cellular
damage by binding with free radicals produced during oxidation
reactions
Oxidation reactions - ANSWER ✔✔the energy-yielding reactions in
which either an oxygen atom adds an electron to or a hydrogen atom
removes an electron from a substrate (a group of atoms or molecule)—
the net result is a substrate that has had a partial or complete loss of a
negatively charge particle, an electron. Two partially charged atoms or
groups of atoms, one positively charged and the other negatively
charged, now exist
Free radical (Oxidant) - ANSWER ✔✔any atom or group of atoms
that has an unpaired electron. Because electrons typically function in
pairs, these are very prone to binding to other substrates in an effort to
regain this paired status. When this happens in the human body, there is
potential for a great deal of damage.
Carbohydrates - ANSWER ✔✔produce 4 calories of energy per
gram. Found in foods as monosaccharides, disaccharides, and