Which is healthier to sleep on the left or the right?

Sleeping in either direction is the same, and it is unscientific to say that it is healthier to sleep in either direction.
Sleep is a normal physiological phenomenon, healthy sleep habits should be regular, appropriate amount.
It is recommended to go to bed early and get up early, regular routine, avoid staying up late, bed-ridden and other phenomena, in addition, the need to maintain a quiet, comfortable sleep environment, avoid eating, strenuous exercise before going to bed, to ensure the quality of sleep.
Sleeping in which direction, there is no obvious impact on health.
However, it should be noted that, to avoid sleeping in a windy, too humid, cold, noisy environment, so as not to reduce the quality of sleep, resulting in the emergence of anxiety, depression and other emotions, or increase the psychological pressure of the situation.