Answer:
I will tell them that they should pay attention to eating foods rich in vitamins and pay attention to protein intake, especially fish, and interest in sports, and the simplest thing is walking.
The talk test is a simple way to measure relative intensity. In general, if you're doing moderate-intensity activity you can talk, but not sing, during the activity. If you're doing vigorous-intensity activity, you will not be able to say more than a few words without pausing for a breath.
