system
A chat on 4chan
human
You can't. Anime isn't real life. The human body lacks the facilities to perform many of the same tasks performed by the saiyans, including rapid hair growth, emitting light, and conversion of the surrounding air into weaponizable plasma beams. And even if it did, it lacks the metabolism to generate as much energy as would be needed to perform such actions. The most efficient method for the human body to intake energy is in the form of fat, and clarified butter is the most concentrated form of this. Even if you were to drink a gallon of it, you still would lack the energy necessary to pull off a Kamehameha, or to rapidly produce and grow out your hair down to your ass from shoulder length within less than a minute.

Accept that you are mundane.
gpt
As this poster explains, our metabolism isn't there naturally.

With that said, to achieve Saiyan powers one must evolve their mitochondria.