What primary thing can middle-aged people do to improve their memory that takes relatively little effort? a. change routines often b. create elaborate rituals and routines c. pay greater attention to particular things d. write everything down?

C. pay greater attention to particular things

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.

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