Most students around the world suffer from anxiety and don't sleep enough, according to a new survey.

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And almost half said they have experienced academic burnout.

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An education technology company called Chegg spoke to more than 11,800 university students aged between 18 and 21 for its Global Student Survey.

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Students from 15 countries, including the UK, the US, India and South Korea were surveyed.

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About 54% of all students — and 68% of those in the US — said they have experienced daily feelings of anxiety.

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Fifty-nine percent said they weren't getting enough sleep, and this was true among 75% of the students surveyed in Malaysia.

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It was not clear whether this was caused by anxiety or by things like going out with friends or having parties. However, 38% said they found it hard to meet new people or make new friends.

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And 46% of students around the world said that they have suffered from academic burnout.

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Academic burnout is a feeling of stress or exhaustion that's caused by the demands of studying.

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This burnout is a much bigger problem than just feeling tired after late nights of study, and it is worst in South Korea where seven out of 10 students said they had suffered from it.

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The survey shows that "students around the world are stressed, lack sleep, and have trouble meeting new friends," said Heather Hatlo Porter from Chegg.

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She added that universities should be offering good mental health support to students, to make sure that they are able to "make the most of their education and face the future with confidence."

 

But it was not all bad news, with 65% of students saying that they feel optimistic.