chapter 7 (test 2) Flashcards
(10 cards)
consequences of sleep deficiency (9)
- mental health problems
- decreased performance
- impairment of memory
- increased irritability
- weight gain
- increased risk of metabolic disorders
- increased risk of hypertension, stroke, and heart attack
- increased risk of cancer
- impaired immune system
consequences of daylight savings in relation to accidents and sleep
20% increase in motor vehicle accidents the morning following
- risk of heart attacks goes up 5% in 3 weeks following
reduced sleep effects
people who sleep usually 6 hours of less have a higher risk of having high blood pressure, stroke, and heart disease
how sleep deficiency affects the heart
- raised levels of lipids in blood
- increases risk of heart disease
- hypertension and stroke are associated
- calcification of arteries which leads to blood clots
- cytokine production is affected
other sleep factors that affect heart
- light exposure increases heart rate
- heart rate is higher from 6 am to 12 pm and increases ability for blood clots to form, peak hours for heart attacks and strokes
sleeps affect on metabolism
short or disrupted sleep causes:
- weight gain
- increased fat mass deposition
- obesity
- diabetes
- metabolic disorders
- diabetes
insulin and sleep
- insulin is less effective at lowering blood glucose after sleep restriction and the ability to regulate levels is impaired
- high levels of glucose damage blood vessels, kidney, eye, and nerve function
leptin and ghrelin and sleep
- two hormones secreted from adipose and stomach
- high levels of leptin inhibits food intake (is lowered after loss of sleep)
- high levels of ghrelin stimulate hunger and increase after loss of sleep
sleep and cancer
shift workers have a 50% increased risk of breast and prostate cancer
possible links between sleep and cancer
disruption of immune functioning, exposure to light at night, disturbance of cell cycle rhythms, sleep controlled alterations in hormonal systems
