Animal psychologists say dogs feel stressed and unhappy when they are embraced by their owners, because it stops them being able to run away.
In a study which analysed 250 pictures of dogs as they were being hugged, eight out of 10 animals looked visibly uncomfortable.
Experts at The Kennel Club, and Battersea Dogs & Cats Home, also agreed that owners should not treat their dogs like children, because most pets did not like to be cuddled.
The new study was carried out by Dr Stanley Coren, a canine expert and professor ofpsychology at the University of British Columbia.
He analysed images of dogs being hugged by adults and children he found on the Internet, looking for signs of stress.
At an extreme end, when a dog is especially anxious it bares its teeth or may bite, but Dr Coren said there are 'subtler indicators' that it may be uncomfortable.
Signs of stress include the dog folding its ears down, half-moon eyes or turning its head away to avoid eye contact. If the dog has its eyes closed or is licking his lips it could also be a sign of anxiety. Yawning or raising one paw is another warning sign.
2017届高考英语一轮限时训练:阅读理解(9)
2017届高考英语一轮限时训练:阅读理解(11)
2017届高考英语一轮限时训练:阅读理解(10)
2017届湖北省高三英语一轮复习学案:Unit 2《Healthy eating》(人教版必修3)
2017届湖北省高三英语一轮复习学案:Unit 3《Life in the future》(人教版必修5)
2017届湖北省高三英语一轮复习学案:Unit 1《Great scientists》(人教版必修5)
2017届湖北省高三英语一轮复习学案:Unit 4《Making the news》(人教版必修5)
2017徐州市高考英语一轮回顾练习:单项选择(6)
2017徐州市高考英语一轮回顾练习:单项选择(11)
2017届湖北省高三英语一轮复习学案:Unit 2《Poems》(人教版选修6)
2017届湖北省高三英语一轮复习学案:Unit 4《Sharing》(人教版选修7)
2017届高考英语一轮限时训练:阅读理解(7)
2017届湖北省高三英语一轮复习学案:Unit 1《Festivals around the world》(人教版必修3)
2017届湖北省高三英语一轮复习学案:Unit 3《Computers》(人教版必修2)
2017届湖北省高三英语一轮复习学案:Unit 1《Cultural relics》(人教版必修2)
2017届湖北省高三英语一轮复习学案:Unit 5《The power of nature》(人教版选修6)
2017届湖北省高三英语一轮复习学案:Unit 2《The Olympic Games》(人教版必修2)
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2017届湖北省高三英语一轮复习学案:Unit 3《A taste of English humour》(人教版必修4)
2017届湖北省高三英语一轮复习学案:Unit 5《Nelson Mandela
2017届湖北省高三英语一轮复习学案:Unit 5《Music》(人教版必修2)
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2017届湖北省高三英语一轮复习学案:Unit 4《Global warming》(人教版选修6)
2017届高考英语一轮限时训练:阅读理解(3)
2017届湖北省高三英语一轮复习学案:Unit 3《A healthy life》(人教版选修6)
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2017届湖北省高三英语一轮复习学案:Unit 5《Canada — “The True North”》(人教版必修3)
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2017届湖北省高三英语一轮复习学案:Unit 4《Body language》(人教版必修4)
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