Always have room for a dessert? Here’s why:

Always have room for a dessert? Here's why:

It is a truth universally acknowledged that however full you are, there’s always room for pudding.
And now there’s a scientific explanation – courtesy of Leon Trotsky’s great granddaughter.
Dr Nora Volkow says that our junk food culture means the chemical signals produced by the stomach to say we are full can no longer override the brain’s pleasure centres.
Throughout evolution, these two systems have co-existed to control fullness. But today, when we are surrounded by sugary desserts and junk food, the balance is disturbed.

This mechanism has evolved over hundreds of thousands of years of human evolution, and it has served us well in an environment that wasn’t particularly plentiful in terms of food, let alone foodstuffs with high-caloric content.
The second, highly-complex system, is in the brain and controls our motivation to eat and the pleasure food gives us.
The two systems constantly talk to each other and long co-existed in harmony, keeping calorie intake, and so weight, in check.
But today, when we are surrounded by desserts and junk food, the balance can be disturbed, leaving the signals from the full stomach unable to over-ride the powerful wanting produced by the brain.

The researcher, whose great-grandfather was Russian revolutionary Leon Trotsky, added that food can be addictive, acting on same brain pleasure centres as hard drugs, cigarettes and alcohol.
Perhaps not surprisingly, apples and lettuce are among the least addictive foods. Those most likely to have us hooked include salty fast food , sugary and fatty biscuits and pastries and ice-cream.
She said that solutions to the obesity crisis include subsidising the food industry to come up with recipes for healthy foods that taste good.
BAP president Barbara Sahakian, a Cambridge University professor who has run eating disorder clinics, said the thought of a different taste can reawaken appetite.
She said: ‘That’s the big dessert effect we all experience. Maybe we can’t even get through our whole meal, we eat three-quarters of the main course and can’t eat the rest of it.
‘Then you sit for five or ten minutes and they bring round the dessert trolley or menu and suddenly you feel like you can eat again.’
She advises pudding-lovers who don’t want to overeat to decide on dessert at the start of the meal, allowing them to tailor other courses with the last in mind.

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