exam 2 Flashcards
how many adults arent getting enough sleep
one in three dont get enough sleep, about 10% experience chronic insomnia
how does poor sleep undermine health
drains energy, makes us more prone to unintentional injuries
physical activity
movement produced by skeletal muscles that requires expenditure of energy
physical exercise
physical activity that is planned, repetitive, and purposeful in teh sense that it is intended to improve or maintain one or more aspects of physical fitnessa
aerobic exercise
cardio, light-to-moderate intensity exercise performed for an extended period of time, e.g., swimming, cycling, and running
aerobic means living in air– use of exygen to meet energy demands adequately
anaerobic exercise
strength training, short-distance sprinting. higher intensity but shorter periods of time– any exercise lasting longer than about two minutes is largely aerobic
basal metabolic rate
50-70% of the total energy that your body burns involves hte functioning of cells and vital organs
7 to 10% of the energy serves to break down the food
the rest is the result of physical activity
calories
measure of food energy equivalent to the amount of energy neede to raise the temp of 1 gram of water 1 degree celsius
physical fitness
defined as a set of attributes or characteristics that people have or achieve that relates to the ability to perform physical activity;
muscle strength
muscle endurance
flexibility
body composition - amount of fat compared to lean mass
cardiorespiratory endurance (aerobic fitness)
ability of the heart, blood vessels, and lungs to supply oxygen to working muscles during physical activity for prolonged periods of time
VO2
volume of oxygen; oxygen consumption
VO2 max
aerobic capacity
who are 50% more likely to die of any cause
men who spend four or more hours a day engaged in recreational sitting
what percent of american adults dont get the minimum recommended amount of aerobic and muscle strengthening physical activity
nearly 80%
how much physical activity is needed
healthy adults between ages of 18 and 64 need at min moderate intensity physical activity for at least 30 minutes, five days each week, or at least 75 minutes of vigorous-intensity physical activity
osteoporosis
disorder characterized by declining bone density due to calcium loss
one woman in four over age 60 has osteoporosis
metabolic syndrome
cluster of conditions that occur together
increased blood pressure
elevated blood sugar
excess body fat around the waist
low HDL cholesterol level
high triglyceride level
–increased risk of diabetes, heart disease, and stroke
metabolic flexibility
body’s ability to switch fuel sources when it needs to, from using carbs to fats
opposite is metabolic inflexibility
functional plasticity
brain’s ability to move functions from a damaged area of the brain to other undamaged ones
12 months of 2x weekly strength training improved functional plasticity in senior women
how many american adults describe themselves as sedentary
32% of men and 42% of women
minoritized women being among the least active subgroups in the US
exercise self-efficacy
beliefs regarding the health benefits of exercises, confidence in ability to perform certain physical skills correctly, and self-motivation
forecasting myopia
people contemplating an exercise routine place disproportionate emphasis on the beginning of a workout, which may be unpleasant
why people don’t exercise
think it will be unpleasant
environmental barriers like neighborhood walkability
social isolation
lack of resources for exercising
decline in PE classes in schools
what makes people stick to exercise
enjoyment
formed the habit of regular exercise
grew up in family that exercise
have social support
favorable attitude
perceive self as athletic
believe that ppl should take responsibility for their health
behavior change technique
theory-based method for changing one or more determinants of a health behavior, such as self-efficacy
WHO global action plan for inactivity
walking, cycling, other forms of active transportation are accessible and safe for all;
labor and workplace policies encourage physical activity;
schools have safe spaces and facilities for students to spend their free time actively;
quality physical education supports children to develop behavior patterns that will keep them physically active throughout their lives;
and sports and recreation facilities provide opportunities for everyone to do sports
mhealth
use of smartphones and other mobile technologies to promote health and well-being
many mHealth platforms focus on
smoking cessation
substance abuse
stress management
sleep
medication adherence
physical activity
COM-B behavior change model
for a desired change in behavior (B) to occur, a person must be physically and psychologocially capable (C) of the behavior, have the opportunity (o) to engage in the behavior, and be motivated (M) to do so
compulsive exercise
physical activity that becomes obsessive and causes dysfunction in a person’s life
short sleep duration
less than seven hours of sleep per day
sleep disorder
70 million americans have a sleep disorder
insomnia
narcolepsy
sleepwalking
sleep apnea
more than 2/3 of high school students report getting less than 8 hours of sleep on school nights and 1/3 admit to falling alseep in class
circadian rhythm
biological clock that operates on a 24 hour cycle
thinking and memory are sharpest at the peak of the daily circadian cycle
daylight and other environmental cues reset circadian rhythm - called zeitgebers
adolescence - night owls
after age 20 shift to morning loving larks
sleep patterns at different ages
newborns - 15-17 hours a day in 1-3 hour segments 50% is REM
determining factors in individual sleep patterns
light bulbs
work schedules
internet
other diversions
social jet lag ^
Low SES impacts sleep
race
workplace
neighborhood
and other social factors
interleukin-6
signaling cytokine that contributes to inflammation and pain sensitivity
sleep loss leads to exaggerated pain perception
sleep debt
accumulation of sleep loss that cannot be repaid by one long sleep
college students most likely to be sleep-deprived - 70%
cognitive behavioral therapy for insomnia (CBT-I)
structured intervention that aims to first improve sleep quality and later improve sleep quantity
stepwise procedure that helps people indentify thoughts and behaviors that cause or aggravate sleep problems
may include
stimulus control therapy
relaxation training
sleep environment improvement
sleep restriction
biofeedback
sleep hygiene focus
narcolepsy
neurological disease that usually starts between 15 and 25 years of age
excessive daytime sleepiness that resutls ine pisodes of falling asleep suddenly
abornomal REM sleep
treated with drugs
sleep apnea
breathing repeatedly starts and stops hundreds of times each night, depriving people of slow wave sleep
tips for improving sleep
keep a consistent sleep schedule
set a bedtime that is early enough
dont go to bed unless you are sleep
get out of bed if yo udont fall asleep in 20 minutes
establish a relaxing bedtime routine
use bed only for sleep and sex
make bedroom quiet and relaxing, cool temp
limit exp to bright liht in the evening
turn off devices
dont eat a large meal before bedtime
exercise regularly and maintain a healthy diet
avoid consuming caffeine in the late afternoon or evening
avoid consuming alcohol before bed
reduce fluid intake
unintentional injury
harm that is accidental, not meant to occur
9000 children and teens die each year in the US as a result of unintentional injury
falls from cribs and playpens cause a lot of nonlethal unintentional injuries
intentional injury
harm that results from behaviors designed to hurt oneself or others
injury control
systematic efforts to prevent injuries from occuring and to limit the consequences of those that have already occurred
areas as targets for interventions aimed at reducing the risk of injury
individual behaviors
physical envioronment
access to services
social environment
societal-level factors
primary, seconday, and tertiary prevention of injury
primary - changes in laws and other social policies
secondary - reducing the chance of injury in high-risk situations or for vulnerable individuals
tertiary prevention - occurs after an injury has already happened, limiting the damage
occupational health psychology
application of psychology to improving the quality of work life, and to protecting and promoting the safety, health, and well being of workers
overweight
body weight htat exceeds the typically healthy weight for a person of a given height, age, and body shape
obesity
excessive accumulation of body fat
multiple chronic conditions
two or more chronic conditions that affect a perosn at the same time
lasts more than a year
requiring medical attention
limiting daily activities
food security
having reliable access to a sufficient quantity of affordable, nutritious food
set-point hypothesis
the idea that each person’s body weight is genetically set within a given range, or set point, that the body works hard to maintain
lateral hypothalamus
triggers hunger, releases orexin which is a hunger triggering hormone