Alcohol is a drug that has been around for thousands of years - and enjoyed by hundreds of millions of people - but attitudes to how it is used are changing, particularly amongst the young.
In a major new series here on the BBC World Service we investigate alcohol.
Part One: Young drinkers of Kenya and Great Britain
In the first programme presenter Nigel Wrench meets young drinkers in Kenya and the United Kingdom where drinking is said to be out of control.
Why are so many young people drinking too much and what is it doing to their health?
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