chapter 14.1 Flashcards
what are health psychologists?
researchers who study both the positive effects and negative effects that humans behaviour and decisions have on their health, survival and well-being
what are the 3 life-shortening health problems that smoking cigarettes causes?
lung, mouth and throat cancer
heart disease
pulmonary diseases
how much does shorter is the average smokers life span than a non smoker?
7-14 years
what age can you quit smoking by to greatly reduce the likleihood that a person will die of smoking related cancers?
have to quit by age 30
what percentage of Canadians smoke cigarettes?
12.9% / 4.1 million
15.8% of males
10.1% of females
how many deaths does tobacco cause each year?
7 million
what is the leading cause of preventable death in north America?
cigarette smoking
do more Canadians die demo smoking or from car accidents?
smoking
what are 3 ways that health officials have tried to limit smoking?
anti smoking laws
adding warnings to cigarette packages
adding picture based warnings (graphic images)
what is a new challenge to health officials?
the issue of e-cigarettes or vaping
why is vaping / e-cigarettes an issue?
they are advertised as safer but in reality they are not and it also makes kids start vaping sooner
how does nicotine provide positive reinforcement?
nicotine stimulated reward circuitry in the nervous system
how does nicotine provide negative reinforcement?
nicotine reduces uncomfortable withdrawal symptoms
what is the freshman 15?
the supposed number of pounds students can expect to gain during their first year of school
what are the 3 factors that accounts for the freshman 15?
increase food intake
decreased physical activity
increased levels of alcohol consumption
what do you have to factor in when discussing someones weight?
their height
what do healthcare workers us to account for height differences when measuring weight?
the body mass index (BMI)
what is the body mass index (BMI)?
a statistic commonly used for estimating a healthy body weight given an individuals height
how is BMI calculated?
persons weight/ the square of the persons height (in M)
if a person is 180 cm tall and 100 kg, what is their BMI?
100/1.8^2 = 30.86
what is the everyday usage of BMI?
to determine if someone is normal weight, under weight, over weight or obese
what is the healthy BMI range for someone?
18.5-24.9
what is the BMO score for someone underweight?
less than 18.5
what BMI range is considered overweight?
25-29.9
what is a BMI for an obese person?
30 or more
when is BMI a useful statistic?
when studying a large group of people