Definitely. An adult man has a broader and more muscular body than a young boy. Puberty is not a good time to limit the amount of food you eat. You are meant to put on weight during puberty because your body is growing. You are likely to put on more weight than your body needs only if you eat too many fatty and sugary foods and don’t exercise enough.

It’s difficult to predict how tall you will be, but height is usually determined by heredity, that is, how tall your parents and grandparents are. If both parents are tall, chances are you will probably be tall. If both parents are short, you may be shorter. But this is not true for everybody. Occasionally, a boy will continue to grow or get another growth spurt in his late teens.

It depends on how soon your facial hair appears and how thick it becomes, as well as your personal preference. Generally, heavy facial hair doesn’t develop until later in puberty, maybe not until you’re 16 or older.

No, testosterone is the hormone that starts body hair growing. Your racial/ethnic group and heredity determine how much hair you have, not by how much testosterone you have.

No, testosterone is the hormone that starts body hair growing. Your racial/ethnic group and heredity determine how much hair you have, not by how much testosterone you have.

What you can feel is the epididymis where the sperm is stored. There is an epididymis down the back of each testicle. If you find any other lumps, you should visit your doctor to get a full check-up.

It is normal to get erections at different times, even if you are not thinking about someone you're attracted to or sex. Don’t worry that someone will notice — erections are not as noticeable as you think. Try to ignore the erection, and it will go away on its own.

You will experience wet dreams less frequently as your body progresses through puberty. Generally, as you grow older, you will have more control over your body. Some boys experience wet dreams regularly, while others have very few. It is nothing to worry about.