A new one research I have revealed that only the feeling of hunger old age can be enough to reduce and even the taste and smell of food can reverse the benefits of a diet.
Previous studies have conclusively observed that calorie restriction can extend the lifespan of animals.
’scienceThis new published on Thursday in the journal research It has been reported that starvation alone can increase the lifespan of fruit flies.
Researchers from the University of Michigan in the US and others discovered in their research that bees were starved by removing amino acid molecules from their diet or by activating the part of their brain that motivates them to eat. of the life of duration increased.
Study co-author Scott Pletcher said: ‘We overcame the dietary nutritional theories that researchers had been working with for years to say that this (extending life through dietary control) was necessary. do not have.
Research has found that the concept of not overeating leads to benefits such as increased lifespan.
Scientists have created hunger in bees in several ways.
one Procedures By varying the amount of branched-chain amino acid molecules (BCAAs) in a test snack food, they then allowed the flies to freely eat a buffet of yeast or sugary foods.
The scientists found that the flies that received the low-BCAA snack ate more of the fermented food than the sweet one at the buffet, compared to the flies that received the high BCAAs.
The researchers explained that preference for yeast over sweets indicates a need-based appetite.
This behavior was not due to the calorie content of the low-BCAA snack, as the bees ate more food and gained more calories.
The researchers also found that when bees fed a diet low in BCAAs, they lived significantly longer than flies fed a diet high in BCAAs.
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The scientists then activated nerve cells associated with hunger in the flies using red light.
Flies that undergo this process eat twice as much food as other flies.
These flies also lived significantly longer than the control flies.
Study co-author Christy Weaver said: ‘We think we’ve created a kind of insatiable appetite in the flies and by doing this the flies will live longer. alive Stay.’
Although the scientists used only flies in the study, they claim that ‘there is every reason to expect that the mechanism discovered has the potential to increase appetite in other species.’
The researchers concluded in the study that ‘to life to increase The demonstration of the relaxation of appetite for shows that stimulating conditions alone may be sufficient to induce aging.’