A dangerous game to play. [uma jogada perigosa]

 The legal limit for driving after drinking alcohol is 80 milligrams of alcohol in 100 millilitres of blood[sangue] when tested.

But there is no sure way of telling[Mas não há uma forma clara de afirmar]  how much you can drink before you reach this limit. It varies with each person depending on your weight, your gender [depende de cada pessoa, seu peso, sexo], if you´ve eaten and what sort of drinks you have had.

Some people might reach their limit [algumas pessoas atingem seu limite] after only about three standard drinks.  In fact, your driving ability can be affected by just one or two drinks.

Even if you [mesmo sí voce estiver] are below the legal limit, you could still be taken to court if a police officer[pego por policiais e fiscais] thinks your driving has been affected by alcohol.

   It takes about one hour for the body puts out the alcohol in one standard drink.   

So, if you have a heavy drinking session in the evening[si voce tomar uma cachaçada(sic)] you find that your driving ability is still affected the next morning, or you could even find that you are still over the legal limit. 

In a test with professional drivers, more alcoholic drinks they had had the more [mais e mais quantidade de alcool ingerida]certain they were to performance their ability to drive on... and less able they were to do it!

Alcohol is the major cause of road traffic accidents.

 One in three drivers have been killed [um a cada três motoristas assassinados] on road accidents have levels of alcohol which are over the legal limit, and road accidents after drinking are the biggest cause of death among young men.

More than half of the people stopped[mais da metade das pessoas que são paradas] by the police to take a breathalyzer [bafometro – aparelho para medir concentração de alcool no organismo] test have a blood alcohol concentration more than twice the legal limit.

So the only way to be sure you are safe is not to drink at all.