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| Section | Objectives |
|---|---|
| Foundations of Health and Wellness | - Dimensions of wellness (physical, emotional, social, intellectual, spiritual) - Determinants of health and lifestyle factors |
| Physical Fitness Principles | - Components of fitness (cardiorespiratory endurance, muscular strength, muscular endurance, flexibility, body composition) - Exercise principles (FITT principle, overload, progression, specificity) |
| Disease Prevention and Health Promotion | - Preventive health practices and lifestyle interventions - Chronic disease risk factors |
| Behavior Change and Mental Wellness | - Stress management and coping techniques - Motivation and behavior change strategies |
| Nutrition and Healthy Eating | - Macronutrients and micronutrients - Dietary guidelines and balanced diet planning |
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NEW QUESTION # 16
Which description of the REM sleep phase is true?
Answer: B
Explanation:
REM (Rapid Eye Movement) sleepis best known as the stage in whichmost vivid dreaming occurs, making optionCthe true description. During REM, brain activity becomes more active and can resemble wakefulness in some ways, which helps explain why dreams can feel intense, emotional, and story-like. REM plays an important role in mental recovery, learning, and emotional processing, which is why adequate sleep time supports mood and cognitive performance.
REM does not usually occur in longer periods during the first half of the night. Instead, sleep cycles repeat roughly every 90 minutes, andREM periods typically become longer later in the night, especially in the second half. That is why cutting sleep short often reduces REM time disproportionately.
OptionBis also incorrect because REM is not defined by a steady slowing of breathing and heart rate. While the body's muscles are largely relaxed and temporarily "inhibited" to prevent acting out dreams,breathing and heart rate can be more variablein REM compared with deeper non-REM sleep.
OptionDdescribesStage 1 (N1)rather than REM. Stage 1 is the drifting transition where a person can easily wake up, whereas REM is a distinct phase within the sleep cycle.
From a health and wellness perspective, understanding REM can help explain why consistent sleep duration matters. People often feel mentally foggy or emotionally reactive when they miss sleep because REM and other key stages are shortened. Supporting REM sleep involves steady sleep-wake times, limiting alcohol close to bedtime, managing stress, and creating a dark, cool, quiet sleep environment.
NEW QUESTION # 17
Which of the following contribute to a healthy diet?Select 3 answers.
Answer: B,C,E
Explanation:
A healthy diet supports steady energy, healthy body composition, heart health, digestion, and long-term disease prevention. The three options that most directly align with widely taught nutrition principles are limiting added sugars and salt (A),including whole grains (B), andeating a variety of fruits and vegetables (C).
Limitingadded sugarshelps reduce excess calorie intake with little nutritional value and supports healthier blood sugar patterns and dental health. Reducingsalt (sodium)supports healthy blood pressure, which is a major protective factor for cardiovascular and kidney health. Choosing a variety offruits and vegetables increases intake of fiber, potassium, and many vitamins and protective plant compounds. Variety matters because different colors and types provide different nutrient profiles (for example, leafy greens, orange vegetables, berries, and cruciferous vegetables each contribute unique benefits).
Consumingwhole grains-such as oats, brown rice, whole-wheat bread, and whole-grain pasta-supports digestive health through fiber, improves fullness, and contributes nutrients like B vitamins and minerals.
Many educational nutrition plans encourage making at least half of grains whole, and "three-ounce equivalents or more" reflects a common daily target used in dietary planning.
The remaining options do not reflect healthy-diet guidance. Allocatingover 20% of daily calories to saturated fat (D)is generally considered too high and is associated with poorer heart-health patterns when it displaces unsaturated fats. "Consuming whole-milk products after childhood (E)" is not a general requirement for health; while dairy can be part of a balanced diet, choosinglower-fat dairyis often recommended to limit saturated fat while still getting calcium and protein.
NEW QUESTION # 18
Which reaction is common with food intolerance?
Answer: B
Explanation:
Food intolerance commonly causesdigestive symptoms, andstomach crampsare among the most typical reactions. A food intolerance is generally different from a food allergy. Intolerances usually involve the digestive system's difficulty processinga food or component (for example, lactose intolerance due to low lactase enzyme activity). Symptoms often include abdominal pain or cramps, bloating, gas, nausea, and diarrhea. These symptoms may appear after eating certain foods and can vary with the amount consumed.
In contrast, swelling in the mouth, throat tightening, and difficulty breathing are warning signs more consistent with anallergic reaction, which involves the immune system and can become severe rapidly.
Those symptoms can signalairway involvementand may indicate an emergency situation requiring immediate medical attention. The fact that options A, B, and D involve the mouth/throat/airway strongly points away from intolerance and toward allergy.
Understanding the difference matters for health and safety. While intolerances can significantly affect comfort and quality of life, they are less likely to cause sudden life-threatening reactions. Management typically focuses on identifying trigger foods, adjusting portion sizes, choosing substitutes (like lactose-free dairy), and reading ingredient labels. Keeping a food-and-symptom log can help pinpoint patterns. If symptoms are severe, persistent, or confusing-or if there is any airway swelling, hives, or breathing trouble-medical evaluation is important to rule out allergy or other conditions.
Therefore, the best answer isstomach cramps, because gastrointestinal discomfort is a hallmark feature of food intolerance, while breathing-related symptoms are far more characteristic of allergic reactions.
NEW QUESTION # 19
Which immune system proteins recognize and inactivate invaders?
Answer: C
Explanation:
Antibodies are specializedproteinsmade by the immune system torecognize, bind to, and help neutralize harmful invaderssuch as bacteria, viruses, and other foreign substances. They are produced byB lymphocytes (B cells), which can develop into plasma cells that release large amounts of antibodies into the blood and lymph. Each antibody is designed to fit a specific target, called anantigen, much like a key fits a lock.
When antibodies bind to antigens on the surface of an invader, they help "inactivate" the threat in several important ways. First, they canneutralizepathogens directly by blocking their ability to enter body cells or release toxins. Second, antibodies cantag invaders for destruction-a process calledopsonization-making it easier for immune cells such as macrophages and neutrophils to engulf and break down the pathogen. Third, antibodies can activate thecomplement system, a group of proteins that can puncture pathogen membranes or amplify immune responses.
It's important to distinguish antibodies from the other options.Antigensare not immune proteins that protect you; they are theforeign markerson pathogens that antibodies recognize.Cytokinesare signaling proteins that coordinate immune activity (they "communicate" between cells rather than specifically binding invaders).
Hormonesregulate body functions like metabolism, growth, and stress response, but they are not the primary proteins that recognize pathogens.
In health and wellness, strong immune function is supported by adequate sleep, balanced nutrition (especially protein, vitamins A/C/D, zinc), stress management, and regular physical activity-all of which help the body produce and regulate immune components, including antibodies.
NEW QUESTION # 20
A male individual has a family history of heart disease but is currently healthy. The individual wants advice on the type of exercise to reduce risk. Which approach is recommended by the American Heart Association to achieve this goal?
Answer: D
Explanation:
For lowering future cardiovascular risk-especially with afamily history of heart disease-the most consistently recommended exercise foundation ismoderate-intensity aerobic activity performed regularly throughout the week. The American Heart Association (AHA) advises adults to getat least 150 minutes per week of moderate-intensity aerobic activity(or 75 minutes vigorous, or a combination), preferably spread across the week. A very practical way to meet that goal is about30 minutes on 5 days per week, which aligns closely with "four to five times per week." Moderate-intensity aerobic exercise includes brisk walking, cycling at an easy-to-moderate pace, swimming, or dancing-activities that raise the heart rate and breathing while still allowing conversation (the "talk test").
These workouts improvecardiorespiratory fitness, help manageblood pressure, supporthealthy cholesterol patterns, improveinsulin sensitivity, and assist with weight management-key protective factors for heart health.
The other options are valuable but are not the primary AHA approach for reducing heart-disease risk in an otherwise healthy person. Stretching supports mobility and comfort, but it does not provide the same cardiovascular conditioning. Meditation can reduce stress and may support heart health indirectly, but it is not a substitute for aerobic conditioning. Strength training is important and is also recommended by the AHA (typicallyat least 2 days per week), but on its own it does not replace aerobic activity as the main strategy for cardiovascular risk reduction.
So, the best single choice ismoderate-intensity aerobic exercise four to five times per week, ideally combined with some resistance training across the week for a complete heart-healthy routine.
NEW QUESTION # 21
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