Many people are concerned about the food they eat. Although it does play a part in our health and wellbeing, there are many other factors that contribute to a healthy lifestyle. You can start by waking up in the morning and instead spending the time indoors, to get up, walk outdoors in the nature.
The sun rises in the East, and the Earth rotates, as the sun hits the Earth the best time to be outdoors is in the morning because you are protected from the direct sunlight.
There is yin (cold) and yang (hot), after 8pm the yin in the energy increases and that is why it is best to be indoors after this time.