klimt
Forum Guru
Topics: 27
Posts: 605
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During a marathon, a 28-year old woman initially has pain and distress but suddenly feels exhilaration halfway through the race. The best explanation is increased release of:
A. ACTH
B. beta - endorphin
C. epinephrine
D. glucagon
E. somatostatin
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| blueocean
Forum Senior
Topics: 15
Posts: 195
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B- "runner's high", which is said to occur when strenuous exercise takes a person over a threshold that activates endorphin production. Endorphins are released during long, continuous workouts, when the level of intensity is between moderate and high, and breathing is difficult. This also corresponds with the time that muscles use up their stored glycogen and begin functioning with only oxygen. Workouts that are most likely to produce endorphins include running, swimming, cross-country skiing, long distance rowing, bicycling, aerobics, or playing a sport such as basketball, soccer, or football. However, some scientists question the mechanisms at work, their research possibly demonstrating the high comes from completing a challenge rather than as a result of exertion.
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| ManuNastai
Transilvanian..
Topics: 55
Posts: 838
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nice explination blueocean
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"Love is the only inflamation of the heart that drains in the vagina" (translation after Dr Petre Florescu, Professor of Pathology, UMF "Iuliu Hatieganu", Cluj Napoca
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