Pre-ventilate the room and create a comfortable temperature inside it. Some perform lessons on rhythmic music, it sets the speed and joy in the mood. You can also watch TV, for example, your favorite show or series, unless it is distracting and reducing you. An hour before the training is forbidden to eat, and the last meal is better to make a small snack. 10 minutes before the training starts, it is recommended to drink half a glass of water. Classes need to be done daily, better at night.