Influences on Health: Biology, Psychology, and Social Factors
Traditional Western medical model:
Health is seen as the absence of disease.
Patients are passive recipients.
Focus on medical treatments (e.g., drugs).
Health professionals are assumed to have primary control.
Integrated approach (psychologists and health-care professionals):
Individuals play a more active role.
Attitudes and behaviors are critical for health, recovery, and flourishing.
Health Psychology and Well-being
Health psychology:
Integrates research on health and psychology.
Applies psychological principles to promote health and well-being.
Well-being:
A positive state involving striving for optimal health and life satisfaction.
Biopsychosocial Model
Biopsychosocial model:
Integrates biological, behavioral, and social factors on health and illness.
Central to the difference between the traditional medical model and health psychology.
Eating Problems
Obesity:
Body weight is 20% or more over the ideal weight for a person’s height (definitions vary).
A state of excess body fat determined using the Body Mass Index (BMI).
Represents a major health risk.
Reasons for the rise in obesity:
High Fructose Corn Syrup (HFCS) consumption.
Excessive calorie intake.
Insufficient exercise.
BMI Calculation
BMI Calculation:
Formula: weight (lb) / [height (in)]^2 \times 703
Example: Weight = 150 lbs, Height = 5'5" (65")
Calculation: [150 ÷ (65)^2] \times 703 = 24.96
Metric Formula: weight (kg) / [height (m)]^2
Body Mass Index Categories
BMI Categories:
Underweight: < 18.5
Normal: 18.5-24.9
Overweight: 25-29.9
Obese: 30-34.9
Extremely Obese: 35<
Statistics:
Increase in eating disorder threefold in last 50 years.
10% of population has eating disorders.
90% of cases are young women and adolescent girls.
Up to 21% of college women show sub-threshold symptoms.
61% of college women show some sort of eating pathology
Three Types of Eating Disorders
Three Types of Eating Disorders:
Anorexia nervosa: Pursuit of thinness that leads to self-starvation.
Bulimia nervosa: Cycle of bingeing followed by extreme behaviors to prevent weight gain, such as purging.
Binge-eating disorder: Regular bingeing without purging behaviors.
Anorexia Nervosa
Anorexia Nervosa:
Begins with restricting certain foods, like dieting.
Restriction of high-fat foods first.
Food intake becomes severely limited.
EDNOS
EDNOS: Eating Disorders Not Otherwise Specified.
Eating Disorders in France
France bans fashion models who are too thin.
Models need a medical certificate showing a BMI of at least 18 before being hired.
Around 121 pounds for a height of 5.7 feet.
Agencies that violate the law may face imprisonment of up to six months and a fine of 75,000 euros ($82,000).
Websites inciting excessive thinness by encouraging eating restrictions may face up to a year in prison and fines up to 100,000 euros.
Anorexia affects 30,000-40,000 people in France, mostly teenagers.
Male Eating Disorders
Male eating disorders are not just female problems
Sexually Transmitted Infections (STIs)
Sexually Transmitted Infections (STIs):
Infections transmitted through sexual contact.
STI Statistics:
Nearly 20 million new cases of STIs each year in the United States.
About 54,000 people are diagnosed with an STI each day.
About half of new infections are in people aged 15 to 24 years old.
Young males and females contract STIs at about equal rates.
Over the course of their lives, 1 in every 2 people will get an STI.
Common Sexually Transmitted Infections
Common Sexually Transmitted Infections:
Chlamydia (2,860,000 new cases/year):
Bacterial infection.
Symptoms: Often no symptoms, but may include thin, clear discharge from vagina or penis, irritation during urination.
Treatment: Easily cured with antibiotics.
Gonorrhea (820,000 new cases/year):
Bacterial infection.
Symptoms: Sometimes no symptoms, but may include painful urination, abnormal discharge from vagina or thick discharge from penis, swollen testicles.
Treatment: Two different antibiotics at the same time.
Syphilis (55,400 new cases/year):
Bacterial infection.
Symptoms: Painless, round sores around the genitals; skin rash and fever; large sores on other body parts.
Treatment: Long-acting antibiotic.
Trichomoniasis (1,090,000 new cases/year):
Parasitic infection.
Symptoms: Most people do not have symptoms; itching, burning, or unusual discharge in the genitals; pain during sexual activity.
Treatment: Easily cured with drug therapy; all sexual partners must be treated.
Human Papillomavirus (HPV) (14,100,000 new cases/year):
Viral infection.
Symptoms: Usually no symptoms; itchy genital warts; throat warts; various cancers.
Treatment: Treat symptoms; vaccinations may provide protection.
Herpes (776,000 new cases/year):
Viral infection.
Symptoms: Burning or itching at site of infection; painful blisters that break and then crust over; fever and flu-like symptoms; body aches and swollen glands.
Treatment: No cure for the virus; infections can spread when blisters occur; antiviral drugs may relieve symptoms.
Human Immunodeficiency Virus (HIV) (41,400 new cases/year):
Viral infection.
Symptoms: Often no initial symptoms; flu-like symptoms; fatigue; weight loss; persistent headaches; can progress to AIDS without treatment.
Treatment: No cure for the virus; long-term treatment with multiple antiretroviral drugs controls HIV; without treatment, progression to AIDS is often fatal.
Prevention of Sexually Transmitted Infections
Safer Sex:
Sexual behaviors that decrease the likelihood of contracting an STI.
Methods:
Abstaining from sex or limiting the number of sexual partners.
Getting information about their sexual health and the sexual health of their partner(s).
Receiving vaccinations against HPV and using barrier methods.
Barrier methods of protection
Oral sex is not safe—HPV can be transmitted through oral sex and is associated with a large increase in mouth and throat cancer.
COVID-19
COVID 19 Statistics available at the links
Stress
Stress: An Everyday Event
Impact of Stress
Major life stressors: Large disruptions, especially unpredictable and uncontrollable catastrophic events, that affect central areas of people’s lives.
Daily hassles: Everyday irritations that cause small disruptions, the effects of which can add up to a large impact on health.
Primary appraisal: When encountering a stressor, a person judges its potential threat and then determines if effective options are available to manage the situation.
Stress is likely to result if a stressor is perceived as extremely threatening or threatening with few or no effective coping options available.
Student Stress Scale
Next to each event is a score that indicates how much a person has to adjust as a result of the change.
Both positive events (outstanding personal achievement) and negative events (major personal injury or illness) can be stressful because they require us to make adjustments.
Add together the life change unit scores to determine how likely you are to experience illness or mental health problems as a result of the stress of these events.
300 life change units or more: A person has a high risk for a serious health change.
150-299 life change units: About 1 of every 2 people is likely to have a serious health change.
149 life change units or less: About 1 of every 3 people is likely to have a serious health change.
Stress and Health
Physical reactions to stress and health:
general adaptation syndrome:
alarm reaction
resistance stage
exhaustion stage
Reactions to Stress
Physical reactions to stress and health:
general adaptation syndrome:
alarm reaction
resistance stage
exhaustion stage
GAS and the immune system
Fight or Flight vs Tend and Befriend
Influence Factors of Stress
personality characteristics and stress reactions:
Type A personality:
competitive
rushing
workaholic
speaks loudly or “explosively”
perfectionistic or demanding
hostile and aggressive
prior experience with the stress
developmental factors:
age
predictability and control
social support:
someone to talk to
receiving advice and solace
Coping
Types of coping
Emotion-focused coping: A type of coping in which people try to prevent an emotional response to a stressor.
Problem-focused coping: A type of coping in which people take direct steps to confront or minimize a stressor.
Downward comparison: You would focus on possible good things—the proverbial silver lining—in the current situation.
Another strategy is to give positive meaning to ordinary events.
Positive Psychology
Positive psychology
The study of the strengths and virtues that allow people and communities to thrive
According to positive psychologists, happiness has three components:
Positive emotion and pleasure
Engagement in life
A meaningful life
Well-Being Index investigates people’s sense of well-being across six areas:
Life evaluation
Emotional health
Work environment
Physical health
Healthy behavior
Basic access to housing, food, and water
Stress Management Techniques
Stress Management Techniques
Physical
Exercise
Psychological
Progressive relaxation
Meditation
Imagine a calm environment
Try to be optimistic
Be spiritual
Laugh
Social
Manage time wisely
Develop social support
Talk with friends
Find community
If all else fails Get a Dog
Effective Stress Management
Effective Stress Management
Reduce daily hassles
Know your limits
Follow a reasonable schedule
Take frequent breaks
Develop more effective time-management skills
Learn to prioritize
Develop relaxation skills
Take care of your body
Gather information
Expand your social network
Prevent burnout
Replace stress-inducing thoughts with stress-busting thoughts