Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statements : In a recent survey report, it has been stated that those who undertake physical exercise for at least half an hour a day are less prone to have any heart ailments.

Conclusions :
I. Moderate level of physical exercise is necessary for leading a healthy life.
II. All people who do desk-bound jobs definitely suffer from heart ailments.

Explanation:-

The statement mentions that chances of heart ailments are greatly reduced by a regular half-hour exercise. So, I follows. However, it talks of only reducing the probability which does not mean that persons involved in sedentary jobs shall definitely suffer from heart ailments. So, II does not follow.