One Finger (1)
Before reaching the Embryonic Breathing realm, a cultivator's vitality could only reach 15 at most. It was impossible to go any higher.
Only by reaching the state of Will-Breath could the human race of the Milky Way Federation increase their vitality to 15 and above, while the Divine Breath could increase their vitality to 20 and above, and the Mixed Energy Breath could increase their vitality to 50 at most. The deviation would not be too big.
Of course, there were some special lifeforms in the Huaman Multiverse where the Milky Way Federation was located. They could raise their vitality to a higher level in the same spiritual realm. However, there was a loss. In other aspects, they might not be as good as humans.
Experts in the Embryonic Breathing realm could live up to 500 years at most, but their physical bodies could be preserved for thousands of years or even more than 10,000 years.