Islamic civilization contributed not only to the recovery of the knowledge of the peoples of classical antiquity, but also created the means and conditions for its expansion and development. One of Islam's contributions to medicine was the practice of exposing the convalescent to fresh air.
Breathing clean air is basically a natural remedy. It is much more than a matter of survival, it is an improvement in quality of life. In the morning, the air is very fresh and helps to oxygenate the lungs, benefiting the circulation of blood, since it is the time that concentrates less impurities in the air.
