Qi gong can be thought of as a kind of breathing & stretching exercise that opens up the meridians and releases blocked qi. Naturally it has implications on the physical body: improved energy flow = more energy = better health, less tension better functioning organs, and as the physical body improves in health, there are mental repercussions: greater peace of mind, strength of character increased focus and awareness.
It is best to do qigong daily in the morning. There are many many varieties and styles of qi gong. It is a kind of medicine, and certain qi gongs are for development of different aspects of the physical, the mental or the spiritual. Some styles of qi gong are useful as “general purpose” qi gong. Safe for everyday practice. The 8 Pieces of Silk is one such variety.
Here is a three part video for you to practice with: