You can learn to sing with a distorted voice safely. Try this singing exercise if you want to add rasp and grit to your voice for those genres requiring heavier vocals.
Vocal effects for heavier genres are still a relatively under-researched area of vocal production. That’s not to say that no-one has investigated it, it’s just that until recently distorted voice was considered a highly damaging practice and was therefore shunned by many people in the singing teaching community. Despite this area of voice use now gaining acceptance among the voice teaching fraternity, there is no doubt, in my mind at least, that the practice of vocal distortion is a high-cost item on the menu of vocal effects.
The ZEN of Screaming: https://www.melissacross.com/
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