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Lack of Sleep Linked to Weight Gain (HELSINKI GROUP: SASA, LEA, WILL,…
Lack of Sleep Linked to Weight Gain
(HELSINKI GROUP: SASA, LEA, WILL, MICHAEL, RUEBEN)
There are new findings that not enough sleep may cause people to gain weight ( fist paragraph )
Lack of sleep can produce hormonal changes that increase feelings of hunger.
There are new findings that not enough sleep may cause people to gain weight.
Some people slept less than 5 hours and experienced hormonal changes (second paragraph )
15% higher blood levels of a hormone called ghrelin than people who slept eight hours
15% less of the hormone leptin
Experts say ghrelin helps make people feel hungry; leptin makes you feel full
The scientists say these hormonal changes may be a cause of obesity in Western societies and note that the combination that sleep restriction is common and food is widely available
Weight gain is not affected by how much people exercise ( third paragraph )
The researchers say loss of sleep may increase hunger especially for high-calorie foods, so people gain weight.
People who are awake longer have more time to burn energy
Best amount of sleep ( fourth paragraph )
Researches from the University of California and Wisconsin also found that the best amount of sleep for weight control is 7.7 hours/night.
Less leptin & more ghrelin: people who sleeps only 4 hours for 2 nights
Researchers from Columbia University in New York found that people who got less than four hours of sleep a night were seventy-three percent more likely to be overweight.
The researchers say that for survival, the body may be designed to store more fat during times with less sleep.
