Up your daily calorie intake by 300 to 350 calories per day — that's the equivalent of, say, two glasses of skim milk and a bowl of oatmeal (not the all-you-can-eat sundae bar you were envisioning).
Answer:
as he goes through puberty, there larynx gets bigger and the vocal cords lengthen and thicken, so his voice gets deeper. And his voice may crack or break
Hope this helps!（づ￣3￣）づ╭❤～
