| 1 | Some researchers are working on sponges made of carbon nanotubes that soak up hydrogen. | |
| 2 | Strong fluid flow can stimulate cavernous body, thus effectively improve blood circulation and promote therapeutic efficacy. | |
| 3 | Therefore, by increasing the cavity of the cavernous capacity of the blood, we can achieve an increase in penis size. | |
| 4 | But during arousal, your sponge swells and hardens, and it becomes more obvious to touch. | |
| 5 | The tunica albuginea surrounds the corpora cavernosa, specialized spongy tissue in the core of the penis that fills up with blood during an erection. |