Passage 2 Questions 19 to 22 are based on the passage you have just heard.
A.
The reason why ageing takes a greaterloss on the male heart has been found out.
B.
Scientists have yet to find out why the male heart loses more ofthe cells.
C.
The team has done something to prevent the male from sufferingthe greater loss.
D.
Women over 70 could lose more heart cells than those at the ageof 20.