According to research taking a siesta after a heart meal is quite natural, as scientists have discovered that the brain cells stop producing signals after a meal//.
This new discovery could pave way for treating obesity and eating disorders as well as understanding levels of consciousness.
'It has been known for a while that people and animals can become sleepy and less active after a meal, but brain signals responsible for this were poorly understood,' said Dr Denis Burdakov, the lead researcher based in Manchester's Faculty of Life Sciences.
'We have pinpointed how glucose – the sugar in food – can stop brain cells from producing signals that keep us awake.
Dr Burdakov's research has shown exactly how glucose blocks or 'inhibits' neurons that make orexins – tiny proteins that are vital for normal regulation of our state of consciousness.
'These cells are critical for responding to the ever-changing body-energy state with finely orchestrated changes in arousal, food seeking, hormone release and metabolic rate to ensure that the brain always has adequate glucose.'
Malfunction of orexin neurons can lead to narcolepsy, where sufferers cannot stay awake, and obesity; there is also evidence that orexin neurons play a role in learning, reward-seeking and addiction.
'We have identified the pore in the membrane of orexin-producing cells that is responsible for the inhibiting effect of glucose.
'This previously unknown mechanism is so sensitive it can detect minute changes in glucose levels – the type that occurs between meals for example.
'This may well provide an explanation for after-meal tiredness and why it is difficult to sleep when hungry.
'Now we know how glucose stops orexin neurons 'firing', we have a better understanding of what may occur in disorders of sleep and body weight.
'This research perhaps sheds light on why our Eu
ropean friends are so fond of their siestas.'
Related medicine news :1
. Mystery behind Preeclampsia uncovered2
. Understanding The Mystery Behind Sleepless Nights 3
. Mystery of nacrolepsy uncovered4
. Cholesterol Mystery Solved By Nobel Laureates5
. A Step Towards Unraveling The Schizophrenia And Depression Mystery6
. Mystery Surrounding Use Of Abortion Pill Yet To Be Resolved7
. $2.4 Million Grant To Unravel The Mystery Of Language Recognition.8
. Mystery behind Brain activity during recalling events disentangled9
. Mystery over bird flu infection to Ms. Zhou – China’s 7th bird flu victm10
. Mystery Of The Placebo Effect, Yet To Be Solved11
. Dry Earwax Mystery Solved: Ear Wax Gene Identified