Drinks Poison Riddle

A man and woman went to a restaurant for dinner.
While they were waiting for the main dish,
she ordered 5 drinks with ice because it was very hot.
The woman drank 4 of them all at once,
while the man only drank one.
After a while the man became ill and died.
The doctors said that all the drinks were poisoned.
Question:
Why was the woman still alive while the man died?
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SOLUTION:
The poison was in the ice.
Since the woman drank 4 drinks at once, the poison from the ice didnot melt in the drinks.
So only the man died.