The sexual teachings of the jade dragon. Taoist methods of updating of the male sex

In the book "the Sexual teachings of the jade dragon" discusses the ancient Taoist practice for men which helps to achieve "immortality" through the expansion of sexual potential: specific exercises that promote the accumulation of sexual energy, breathing and meditation practices and techniques of erotic stimulation.
This doctrine, handed down from teacher to student for the past 3000 years, these days it's no less important for the sexual health of men than in the era of its origin