18. if you skip the cool-down portion of exercise, a. you run the risk of gaining weight. b. you won't be able to work out the next day. c. you can work out in less time. d. blood can pool in the exercised parts of the body and diminish the return of blood to the heart.

Warming up before exercise and cooling down and stretching after it are important parts of an exercise programme. If you skip the cool-down portion of exercise, blood can pool in the exercised parts of the body and diminish the return of blood to the heart. Correct D Cooling down helps your heart rate and breathing to return  to normal, helps avoid fainting or dizziness, which can result from blood pooling in the large muscles of the legs when vigorous activity is stopped suddenly, helps prevent muscle soreness...

menstruation is a process in which blood and mucous flows out every month through the vagina. this process occurs every month because one egg is released from the ovary every month and at the same time, the uterus (womb) prepares itself to receive the fertilized egg.

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