Stress can disrupt messages in the brain that tell the body when it is full, a study has found.
Scientists at the Garvan Institute of Medical Research in Australia conducted the research and said it showed a link between stress and overeating.
The study, published in the journal Neuron, highlights the importance of maintaining a healthy diet.
“Stress can override a natural brain response that diminishes the pleasure gained from eating – meaning the brain is continuously rewarded to eat," Prof Herbert Herzog, senior author of the study.
“Chronic stress, coupled with a high-calorie diet, can increase food intake and promote a preference for sweet, highly palatable food, thereby contributing to weight gain and obesity.”
Stress and weight gain
Many people tend to eat more than usual when they are stressed and opt for calorie-rich, sugary and fatty foods.
The researchers wanted to understand the reasons for this.
“There are some previous studies that tested that acute stress is likely to suppress food intake behaviour as it will trigger an acute flight or fight response to handle adverse situations," said first author Dr Kenny Ip told The National.
“In our case, we highlighted that it is chronic stress which is the key driver that increases the intake of the palatable diet."
The researchers used mice to see how different brain areas responded to chronic stress in relation to different diets.
The team discovered that chronic stress silenced a part of the brain known as the lateral habenula, which is usually responsible for dampening reward signals and stopping overeating.
“In stressed mice on a high-fat diet, this part of the brain stayed silent, enabling continuous reward signals that encourage feeding for pleasure, disregarding normal signals of fullness,” Dr Ip said.
Stressed mice on a high-fat diet gained twice as much weight as those on the same diet who were not stressed.
“The anatomical structure as well as the function of habenula is highly conserved across all species, including humans," Dr Ip said.
"Particularly, this brain region in both humans and mice is important for regulating emotional responses and now eating behaviour”.
Key molecule in stress-eating connection
The researchers found that a molecule known as Neuropeptide Y, or NPY, which the brain naturally produces in response to stress, was instrumental in driving this behaviour.
Blocking NPY in stressed mice on a high-fat diet meant they ate less and did not gain as much weight.
The researchers also demonstrated that stress leads creates a greater preference for sweet food.
This was shown in an experiment where stressed mice on a high-fat diet consumed three times more artificially sweetened water than non-stressed mice on the same diet.
“We did not observe this preference for sweetened water in stressed mice that were on a regular diet,” Prof Herzog said.
Stress, food, and energy balance
Prof Herzog emphasised that while food can provide a short-term energy boost to cope with stress, long-term stress can disrupt this balance, leading to unhealthy eating habits and obesity.
“It's a reminder to avoid a stressful lifestyle, and crucially – if you are dealing with long-term stress – try to eat a healthy diet and lock away the junk food," he said.
Potential treatments and interventions
Dr Ip said NPY controlled "feeding and stress, but is also involved in the regulation of many other functions in the brain".
He said using therapies to target NPY would require precise approaches focused on specific regions of the brain.
An alternate could be to monitor a person's stress levels using blood tests.
"This could potentially provide a parameter to examine if individuals are at risk of excessive weight gain and whether anti-stress treatments could help," Dr Ip said.
When asked about strategies to prevent the damaging cycle of stress and unhealthy eating, Dr Ip emphasised the need for people to watch what they eat.
“We all define comfort food differently and have various hobbies. Recognising prolonged periods of high stress is vital," he said.
“In these instances, we recommend individuals pay extra attention to their meal size, frequency and dietary choices."
Dr Ip said obesity increased the risk of cardiovascular disease, hormonal imbalance, infertility and cancers.
“If stress-induced eating within two weeks in our experimental model already has such profound effects on energy metabolism, it is very likely that the damage can be beyond weight gain and obesity only," he said.
Killing of Qassem Suleimani
Israel Palestine on Swedish TV 1958-1989
Director: Goran Hugo Olsson
Rating: 5/5
The Pope's itinerary
Sunday, February 3, 2019 - Rome to Abu Dhabi
1pm: departure by plane from Rome / Fiumicino to Abu Dhabi
10pm: arrival at Abu Dhabi Presidential Airport
Monday, February 4
12pm: welcome ceremony at the main entrance of the Presidential Palace
12.20pm: visit Abu Dhabi Crown Prince at Presidential Palace
5pm: private meeting with Muslim Council of Elders at Sheikh Zayed Grand Mosque
6.10pm: Inter-religious in the Founder's Memorial
Tuesday, February 5 - Abu Dhabi to Rome
9.15am: private visit to undisclosed cathedral
10.30am: public mass at Zayed Sports City – with a homily by Pope Francis
12.40pm: farewell at Abu Dhabi Presidential Airport
1pm: departure by plane to Rome
5pm: arrival at the Rome / Ciampino International Airport
Killing of Qassem Suleimani
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Uefa Champions League Group H
Manchester United v Young Boys, Tuesday, midnight (UAE)
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EPL's youngest
- Ethan Nwaneri (Arsenal)
15 years, 181 days old
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15 years, 235 days old
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15 years, 271 days old
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16 years, 30 days old
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16 years, 68 days old
Ferrari 12Cilindri specs
Engine: naturally aspirated 6.5-liter V12
Power: 819hp
Torque: 678Nm at 7,250rpm
Price: From Dh1,700,000
Available: Now
The five pillars of Islam
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Zayed Sustainability Prize
Mohammed bin Zayed Majlis
VEZEETA PROFILE
Date started: 2012
Founder: Amir Barsoum
Based: Dubai, UAE
Sector: HealthTech / MedTech
Size: 300 employees
Funding: $22.6 million (as of September 2018)
Investors: Technology Development Fund, Silicon Badia, Beco Capital, Vostok New Ventures, Endeavour Catalyst, Crescent Enterprises’ CE-Ventures, Saudi Technology Ventures and IFC
Key figures in the life of the fort
Sheikh Dhiyab bin Isa (ruled 1761-1793) Built Qasr Al Hosn as a watchtower to guard over the only freshwater well on Abu Dhabi island.
Sheikh Shakhbut bin Dhiyab (ruled 1793-1816) Expanded the tower into a small fort and transferred his ruling place of residence from Liwa Oasis to the fort on the island.
Sheikh Tahnoon bin Shakhbut (ruled 1818-1833) Expanded Qasr Al Hosn further as Abu Dhabi grew from a small village of palm huts to a town of more than 5,000 inhabitants.
Sheikh Khalifa bin Shakhbut (ruled 1833-1845) Repaired and fortified the fort.
Sheikh Saeed bin Tahnoon (ruled 1845-1855) Turned Qasr Al Hosn into a strong two-storied structure.
Sheikh Zayed bin Khalifa (ruled 1855-1909) Expanded Qasr Al Hosn further to reflect the emirate's increasing prominence.
Sheikh Shakhbut bin Sultan (ruled 1928-1966) Renovated and enlarged Qasr Al Hosn, adding a decorative arch and two new villas.
Sheikh Zayed bin Sultan (ruled 1966-2004) Moved the royal residence to Al Manhal palace and kept his diwan at Qasr Al Hosn.
Sources: Jayanti Maitra, www.adach.ae
The UAE's journey to space
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Tightening the screw on rogue recruiters
The UAE overhauled the procedure to recruit housemaids and domestic workers with a law in 2017 to protect low-income labour from being exploited.
Only recruitment companies authorised by the government are permitted as part of Tadbeer, a network of labour ministry-regulated centres.
A contract must be drawn up for domestic workers, the wages and job offer clearly stating the nature of work.
The contract stating the wages, work entailed and accommodation must be sent to the employee in their home country before they depart for the UAE.
The contract will be signed by the employer and employee when the domestic worker arrives in the UAE.
Only recruitment agencies registered with the ministry can undertake recruitment and employment applications for domestic workers.
Penalties for illegal recruitment in the UAE include fines of up to Dh100,000 and imprisonment
But agents not authorised by the government sidestep the law by illegally getting women into the country on visit visas.
UAE currency: the story behind the money in your pockets
The specs
AT4 Ultimate, as tested
Engine: 6.2-litre V8
Power: 420hp
Torque: 623Nm
Transmission: 10-speed automatic
Price: From Dh330,800 (Elevation: Dh236,400; AT4: Dh286,800; Denali: Dh345,800)
On sale: Now
Killing of Qassem Suleimani
Conflict, drought, famine
Estimates of the number of deaths caused by the famine range from 400,000 to 1 million, according to a document prepared for the UK House of Lords in 2024.
It has been claimed that the policies of the Ethiopian government, which took control after deposing Emperor Haile Selassie in a military-led revolution in 1974, contributed to the scale of the famine.
Dr Miriam Bradley, senior lecturer in humanitarian studies at the University of Manchester, has argued that, by the early 1980s, “several government policies combined to cause, rather than prevent, a famine which lasted from 1983 to 1985. Mengistu’s government imposed Stalinist-model agricultural policies involving forced collectivisation and villagisation [relocation of communities into planned villages].
The West became aware of the catastrophe through a series of BBC News reports by journalist Michael Buerk in October 1984 describing a “biblical famine” and containing graphic images of thousands of people, including children, facing starvation.
Band Aid
Bob Geldof, singer with the Irish rock group The Boomtown Rats, formed Band Aid in response to the horrific images shown in the news broadcasts.
With Midge Ure of the band Ultravox, he wrote the hit charity single Do They Know it’s Christmas in December 1984, featuring a string of high-profile musicians.
Following the single’s success, the idea to stage a rock concert evolved.
Live Aid was a series of simultaneous concerts that took place at Wembley Stadium in London, John F Kennedy Stadium in Philadelphia, the US, and at various other venues across the world.
The combined event was broadcast to an estimated worldwide audience of 1.5 billion.
Heather, the Totality
Matthew Weiner,
Canongate
QUALIFYING RESULTS
1. Max Verstappen, Netherlands, Red Bull Racing Honda, 1 minute, 35.246 seconds.
2. Valtteri Bottas, Finland, Mercedes, 1:35.271.
3. Lewis Hamilton, Great Britain, Mercedes, 1:35.332.
4. Lando Norris, Great Britain, McLaren Renault, 1:35.497.
5. Alexander Albon, Thailand, Red Bull Racing Honda, 1:35.571.
6. Carlos Sainz Jr, Spain, McLaren Renault, 1:35.815.
7. Daniil Kvyat, Russia, Scuderia Toro Rosso Honda, 1:35.963.
8. Lance Stroll, Canada, Racing Point BWT Mercedes, 1:36.046.
9. Charles Leclerc, Monaco, Ferrari, 1:36.065.
10. Pierre Gasly, France, Scuderia Toro Rosso Honda, 1:36.242.
Eliminated after second session
11. Esteban Ocon, France, Renault, 1:36.359.
12. Daniel Ricciardo, Australia, Renault, 1:36.406.
13. Sebastian Vettel, Germany, Ferrari, 1:36.631.
14. Antonio Giovinazzi, Italy, Alfa Romeo Racing Ferrari, 1:38.248.
Eliminated after first session
15. Antonio Giovinazzi, Italy, Alfa Romeo Racing Ferrari, 1:37.075.
16. Kimi Raikkonen, Finland, Alfa Romeo Racing Ferrari, 1:37.555.
17. Kevin Magnussen, Denmark, Haas Ferrari, 1:37.863.
18. George Russell, Great Britain, Williams Mercedes, 1:38.045.
19. Pietro Fittipaldi, Brazil, Haas Ferrari, 1:38.173.
20. Nicholas Latifi, Canada, Williams Mercedes, 1:38.443.
UAE currency: the story behind the money in your pockets
The biog
Job: Fitness entrepreneur, body-builder and trainer
Favourite superhero: Batman
Favourite quote: We must become the change we want to see, by Mahatma Gandhi.
Favourite car: Lamborghini
The National's picks
4.35pm: Tilal Al Khalediah
5.10pm: Continous
5.45pm: Raging Torrent
6.20pm: West Acre
7pm: Flood Zone
7.40pm: Straight No Chaser
8.15pm: Romantic Warrior
8.50pm: Calandogan
9.30pm: Forever Young
The years Ramadan fell in May
The specs: 2018 Mercedes-AMG C63 S Cabriolet
Price, base: Dh429,090
Engine 4.0-litre twin-turbo V8
Transmission Seven-speed automatic
Power 510hp @ 5,500rpm
Torque 700Nm @ 1,750rpm
Fuel economy, combined 9.2L / 100km
Have you been targeted?
Tuan Phan of SimplyFI.org lists five signs you have been mis-sold to:
1. Your pension fund has been placed inside an offshore insurance wrapper with a hefty upfront commission.
2. The money has been transferred into a structured note. These products have high upfront, recurring commission and should never be in a pension account.
3. You have also been sold investment funds with an upfront initial charge of around 5 per cent. ETFs, for example, have no upfront charges.
4. The adviser charges a 1 per cent charge for managing your assets. They are being paid for doing nothing. They have already claimed massive amounts in hidden upfront commission.
5. Total annual management cost for your pension account is 2 per cent or more, including platform, underlying fund and advice charges.
Other simple ideas for sushi rice dishes
Cheat’s nigiri
This is easier to make than sushi rolls. With damp hands, form the cooled rice into small tablet shapes. Place slices of fresh, raw salmon, mackerel or trout (or smoked salmon) lightly touched with wasabi, then press, wasabi side-down, onto the rice. Serve with soy sauce and pickled ginger.
Easy omurice
This fusion dish combines Asian fried rice with a western omelette. To make, fry cooked and cooled sushi rice with chopped vegetables such as carrot and onion and lashings of sweet-tangy ketchup, then wrap in a soft egg omelette.
Deconstructed sushi salad platter
This makes a great, fuss-free sharing meal. Arrange sushi rice on a platter or board, then fill the space with all your favourite sushi ingredients (edamame beans, cooked prawns or tuna, tempura veggies, pickled ginger and chilli tofu), with a dressing or dipping sauce on the side.
The biog
Name: Dhabia Khalifa AlQubaisi
Age: 23
How she spends spare time: Playing with cats at the clinic and feeding them
Inspiration: My father. He’s a hard working man who has been through a lot to provide us with everything we need
Favourite book: Attitude, emotions and the psychology of cats by Dr Nicholes Dodman
Favourit film: 101 Dalmatians - it remind me of my childhood and began my love of dogs
Word of advice: By being patient, good things will come and by staying positive you’ll have the will to continue to love what you're doing
MATCH INFO
Newcastle 2-2 Manchester City
Burnley 0-2 Crystal Palace
Chelsea 0-1 West Ham
Liverpool 2-1 Brighton
Tottenham 3-2 Bournemouth
Southampton v Watford (late)
Pharaoh's curse
British aristocrat Lord Carnarvon, who funded the expedition to find the Tutankhamun tomb, died in a Cairo hotel four months after the crypt was opened.
He had been in poor health for many years after a car crash, and a mosquito bite made worse by a shaving cut led to blood poisoning and pneumonia.
Reports at the time said Lord Carnarvon suffered from “pain as the inflammation affected the nasal passages and eyes”.
Decades later, scientists contended he had died of aspergillosis after inhaling spores of the fungus aspergillus in the tomb, which can lie dormant for months. The fact several others who entered were also found dead withiin a short time led to the myth of the curse.
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UAE squad v Australia
Rohan Mustafa (C), Ashfaq Ahmed, Chirag Suri, Rameez Shahzad, Fahad Nawaz, Amjed Gul, Shaiman Anwar, Ahmed Raza, Imran Haider, Muhammad Naveed, Amir Hayat, Ghulam Shabir (WK), Qadeer Ahmed, Tahir Latif, Zahoor Khan
MATCH INFO
Champions League quarter-final, first leg
Ajax v Juventus, Wednesday, 11pm (UAE)
Match on BeIN Sports
Key products and UAE prices
iPhone XS
With a 5.8-inch screen, it will be an advance version of the iPhone X. It will be dual sim and comes with better battery life, a faster processor and better camera. A new gold colour will be available.
Price: Dh4,229
iPhone XS Max
It is expected to be a grander version of the iPhone X with a 6.5-inch screen; an inch bigger than the screen of the iPhone 8 Plus.
Price: Dh4,649
iPhone XR
A low-cost version of the iPhone X with a 6.1-inch screen, it is expected to attract mass attention. According to industry experts, it is likely to have aluminium edges instead of stainless steel.
Price: Dh3,179
Apple Watch Series 4
More comprehensive health device with edge-to-edge displays that are more than 30 per cent bigger than displays on current models.
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