Which of the following statement is NOT correct about exercise?

It is recommended to engage in these exercises at least four times a week, with each session lasting 40 minutes.

Engaging in regular exercise can serve as a proactive means of channeling the physiological arousal associated with stress. Exercise offers numerous benefits to the body, such as improving cardiovascular function, enhancing lung capacity, promoting circulation, reducing blood pressure, lowering blood fat levels, and bolstering the immune system. Activities like swimming, walking, running, cycling, and skipping are particularly effective in alleviating stress. To reap the benefits, it is recommended to engage in these exercises at least four times a week, with each session lasting 30 minutes. It is important to structure each exercise session with a warm-up phase, followed by the main exercise routine, and concluding with a cool-down period. By incorporating regular exercise into one's routine, individuals can effectively manage stress and promote overall physical well-being.