N&W 4 Flashcards

1
Q

How widespread is osteoporosis

A

10 million americans affected 80% are women

half of all women 50 and up will fracture the three most common fracture placees in thier lifetime

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2
Q

Why is osteoporosis a growing health care problem in America

A

aging population /baby boomers

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3
Q

What sites are the most common for fractures

A

wrist
spine
hip

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4
Q

why are fractures dangerous

A

amoung the elderly 25% of hip fracture ppl die within a year

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5
Q

Why is osteoporosis seen in women more than men and in whites more than blacks

A

blacks and men have 30% (men) 10%(blacks) more bone mass than whites and women

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6
Q

what are uncontrollable risks for osteoporosis

A

age
family history
caucasian
menopause

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7
Q

What are major dietary risk factors

A
underweight
low calorie over long period of time
poor vit d
high sodium intake
excessive protien intake
inadequate vit k, soy, flouride,boron, potassium or magnesium
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8
Q

What are other risk factors for osteoporosis

A

lack of sufficient exercise
smoking
alcohol

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9
Q

How do sodas influence bone health

A

phosphoric acid in soda requires buffering high levels of phosphate in the diet caused high fecal loss of ca

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10
Q

Is milk the answer to brittle bones or increase the risk?

A

no and no

people who consume calcium and high protien mainly from dairy products have higher incidences of hip fractures

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11
Q

whatis the mechanism for why protein and salt have a negative effect on bone density

A

sulfur containing amino acids

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12
Q

what role does protien play in bone health

A

excess protein is not good for bone health it increases urinary excretion of calcium 10g of protien 10g of calcium lost

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13
Q

What is the effect of soy and its isoflavones

A

improves bone minerals density, promote bone formation

isoflavones like genstien act like estrogen and bind to estrogen receptors in bone tissue

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14
Q

What is the status of bone in vegetarians and vegans

A

vegetarians have less urinary ca excretion and less risk factors
vegans are at a higher risk of fractures

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15
Q

What is the role of vitamin d in bone health

A

required for ca absorbtion and utilization also stregnthens muscles so risk of falls lower 20%

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16
Q

what effect is played by boron

A

postmenopausal women taking 3mg/day excreted about 20% less calcium a day

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17
Q

why is the first 5-7 years after menopause the most critical time for a womens skeleton

A

bone loss 3% a year

after 1% a year

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18
Q

Are all calcium supplements safe

A

no dolomite and oyster have lead

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19
Q

what effect does excersize have on bone health

A

helps slow the rate of bone loss

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20
Q

what role does vit k, potassium, and magnesium have in bone health

A

helps with metabolism of osteocalcium in the bone

potasium and magnesium are alkaline residue which does not dissolve bone

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21
Q

how does the body maintain the blood level of calcium in a narrow window

A

pth, calcitriol raise levels

calcitonin lowers levels

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22
Q

How do the calcium supplements compare for content and bioavailability

A

there is little difference carbonate and citrate are the most available forms

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23
Q

Are those calcium supplemetns effective in preventing bone health

A

yes reduced bone loss in menopausal women who had low calcium intakes who took 500 mg of calcium a day in women with high calcium intake no change was seen

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24
Q

Name some good plant sources of calcium

A

green veggies
beets
beans

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25
What characteristics are seen in some of the most happy cities in the world
1/2 the workers bike to work | open space, public gardens, recreational activities
26
What is more important excersize good nutrition
their both important
27
what is price tag for inactivity
affects the function of the brain, heart, blood vessels, gi tract, increased mortality, higher anxiety and depression high risk of cvd and cancer
28
how does excesize assist with brian function
protects effect cognitive decline may restore memory fit ppl have sharper brains better relational memory bigger hippocampus
29
Of what value is strength training and after 50
improves physical and mental health lower risk of diseases joint flexibility and reduces pain after age of 50 you loose 6% of muscle mass w/ a 10-15% loss of strength
30
What are the benefits of regular excersise for cv system
``` lowers resting heart rate higher cardia output improves rythmn lower risk of blood clots lower ldl higher hdl lower bp lower trigylceride ```
31
how does regular excise protect against chronic diseases other than cvd
``` 20-30 day 4-5 times wk cancer diabetes osteoporosis maintain body weight lower all mortality strengthens immune system ```
32
why do people not excersise
lack of time injury lack of knowledge emphasis on high intensity excesise
33
totaal amount of excersise is more important than the the type and intensity
yup
34
is there a different between exercise and physical activty
excercise is planned | physical activity isnt
35
What is the recommendation of the american college of sports medicince blah blah
30 min of moderate intensity physical activity on most to everyday of the week
36
what activity is a very popular choice for many people
walking because it requires no special clothing or equipment
37
why has the first lady launched lets move what has changed amoung the life todays children
kids are bused to school eating more junk food snd excercising less sodas instead of water
38
why is hydration so important during riqorous excercise
body temp raises water less which can lead yo heat exhaustion
39
why is it important to do your physical activity program with a friend, spouse, or family member
accountability | better chance of keeping to it
40
How common is alcohol use on college campus
shitloads
41
in studies on sda what factors are commonly associated with alcohol use
skd
42
what is the alcohol content common alchol drinks
12 oz glass of beer,4-5oz of wine, 3oz of sherry, 1.5 oz shot, 14 g of alchohol
43
how widespread is the use and abuse of alcohol in the usa
avg american consumes about 2 gal a year | 14 million ppl abuse alcohol
44
what societal problems result from alcohol uses and excesses
``` work accidents date rapes car accidents family violence increased cancer aggressive behavior ```
45
is alcohol a stimulant or depressant
depressant
46
how widespread are alcohol drug interactions
over 100 medication adversely react with alcohol
47
how significant is the protective effect of alcohol on heart disease
men who drink no more than 2 drinks a day 20 -40% lower risk of heart disease
48
what is the french paradox
french have the lowest rates of heart disease middle age french men have half the rates of heart disease even thought their saturated fat is high prob becuase they eat less red meat and more fruit and veggies
49
What 2 mechanisms exist to explain the cardioprotective of wine
inhibits blood clot | raises hdl
50
how can these 2 effects be achieved by alternate means
dealcoholized, red grape juice wine does the same | excercise
51
what effect does alcohol have upon blood pressure and stroke
both risks raise | 3-4 drinks a day raise risk by 50% risk for hypertension
52
What cancers are associated with alcohol have upon blood pressure and stroke
mouth,throat, esophagus,stomach,colon,rectum,breast
53
why is it not smart to smoke and drink together
synergistic badness | risk of all those cancers
54
how much alcohol is needed to raise the risk of breast cancer in women
2g/day = 20% higher risk
55
how safe is it for moms to drink during pregnancy or breastfeeding
causes low birth weight and mental retardation and fas
56
How does alcohol affect brain function
.04 % blood level impairs judgement, concentration
57
what other bad shit does alcohol do
raises trigylcerides lowers immune system raises risk of obesity and raises risk of osteoporosis
58
why are caffeinated beverages so popular
ppl use it to fight off sleep
59
what plantd have caffine
``` kola nuts guarana mate coffee cocoa beans tea ```
60
What are the relatives of caffeine and where are they found
theophylline, theobromine
61
how do caffeine levels of tea compare with coffee in their various forms
coffee has more caffeine 5 oz of coffee has 130 tea has 45
62
why is the caffeine level of sodas of power drinks
they are lower than coffee but still high
63
How slowly is caffeine metabolized by certain groups
2-6 hr for adults 20 hrs for late term preg 3-4 days for a newborn
64
how does caffine affect sleep
it stimulates the nervous system and can cause sleeplessnes
65
how does caffeine affect the brain
interferes with adenosine wich helps prepare the body for sleep more alert bigger imagination stimulates cns headaches
66
how does caffeine affect blood chemistry
elevates blood glucose and free fatty acids | blocks enzyme
67
what effect does coffee and similar beverages have upon the cvd system
irregular hearbeat raise bp stimulates heart muscle increased risk for cardiac arrest
68
How does caffine affect the digestive system
stimulates acid production,aggrevates stomach ulcer,relaxes les which acid reflux
69
does caffeine have any possible risk for the fetus
decreased birth weight, still births,head circumference
70
Are ther e any possible benefits of coffee
coffee may help with type 2 diabetes
71
how does caffenism maifest itself
``` irritabilty insomnia tremors restlesness jjitteriness ```
72
Does caffeine increase the risk of cancer
increased risk bladder cancer | is a carcinogen
73
What are the caffiene levels of different forms of chocolate
the more processed/diluted the less caffienemilk has 6 dark has 15
74
Is carob a dafe and useful alternative
yes it has no caffiene and rich in soluable fiber
75
is caffeine additive
yes its psychoactivebecuase it stimulates the cns and alters moods
76
why is caffeine a gateway drug
cuz it creates dependency