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1.What suggested working shifts at night could damage one's health?
a) an Internet website
b) a documentary
c) a hospital
d) a report
2.In which country is the university that conducted the research?
a) Ukraine
b) England
c) South Africa
d) the USA
3.How many genes could get damaged?
a) all of them
b) 24,000
c) 14,520
d) as many as 1,500
4.What could damaged genes potentially result in?
a) compensation claims
b) the gene pool
c) life-threatening diseases
d) weight loss
5.What did a professor say we needed to discover?
a) the missing gene
b) ourselves
c) the secret of life
d) why rhythms exist
6.What do many genes do if they do not follow a regular sleeping pattern?
a) merge with adjacent genes
b) double in size
c) switch off
d) work faster
7.What did the article say becomes less efficient with irregular sleep?
a) the immune system
b) studying English
c) the rhythm of life
d) illness
8.What else is mentioned that upsets our sleeping pattern?
a) alcohol
b) alarm clocks
c) jet lag
d) stress and anxiety
9.What did a doctor say was difficult for people to change?
a) results
b) their lifestyle
c) pajamas (USA) pyjamas (UK)
d) genes
10.What did the doctor say people needed to understand?
a) the dangers of irregular sleep
b) how many genes we have
c) how to look after your genes
d) gene therapy
