Many people believe that, early to bed andearly to rise is a good method to build the body. Actually, morning is not thebest exercise time, and even some scholars believe that morning exercise doesnot benefit the physical health. According to some articles, the reason whymorning exercise does not benefit health is that morning exercise does harm tohuman immune functions.
Exercise is a good thing, but people havesome misunderstandings, for example, many people choose to do exercise in themorning. As is scientifically proven, morning is the peak time of heart diseaseonset, especially when intense activities are done in the morning, making thesecretion of human hormones higher than after noon and at dusk. At this time,the heart is forced to accelerate the beating and interfere with the balance ofsympathetic nerves, it is likely that the people can experience irregular heartbeats, and even death; therefore, it is better to do exercise in the afternoonor in the evening.
Many people also believethat, people should sit down for rest immediately after strenuous exercise, butthis is not right. During the exercise, a large amount of metabolites can beproduced in human body, and a large amount of lactic acid will be generated in muscles.If the people sit down for rest, the lactic acid will become accumulated in themuscles, and the people will experience the symptoms such as muscle weakness,aching pain and joint stiffness. Therefore, after exercise, the patient should jogso that the body can transit to the slow and relaxing status.
After investigation, relevant medical expertsfind that, the athletes who do morning training in swimming will experience a gradual drop in theimmune functions after a period of training. This result draws attention frompeople.
After observation and study, it was foundthat, people will produce excessive adrenal cortical hormones in the body after morning exercise, and the content of in vivocortical hormones will increase. This will not only enhance the physique, but alsopromote the increase in blood pressure induced by cortical hormones and inhibitthe normal immune functions of human. The physical exercise at dusk will befree from such trouble because the content of cortical hormone at dusk isobviously lower than in the morning.
After morning exercise, the flow speed of salivawill slow obviously. You should not think little of the flow speed ofsaliva because the saliva flow will help people resist against the infection. Ifthe saliva flow speed is slow, people are more easily exposed to virusinfection.
Therefore, theresearchers obtain the following conclusion: the best exercise time for peopleis dusk but not morning. During this period of time, the content of cortical hormonein human body is the lowest, and the saliva flow speed is the fasted. It seems that dusk exercise conforms to therequirements of human health, and people should do exercise at dusk.
A large amount of waterdrinking after exercise is not right, either. After strenuous exercise, peoplewill lose a large amount of electrolytes; in case of drinking of a large amountof water, the water and electrolyte will become imbalanced and some people mayfeel dizziness and muscularspasm; therefore, they should havea rest, drink some sports beverage and supplement water and salt.
Source: www.cnys.com/
