Answer: Puberty
Explanation: 13 is an age when most boys have at least started puberty, and my brother got a little bigger from puberty because he had to eat more to feed his growth spurts.
Because there are fruits, vegetables, meats, etc that also have these minerals
You need to do exercices that is all
The correct answer is suicide. Many people between these ages have mental health issues, such as depression. This can lead to depressive thoughts and sometimes suicide.
Cancer is less common, and heart disease is often in older people. Homicide is known as the unlawful killing of a person, which is often another meaning for murder. This is much more uncommon.
The elderly because naturally with old age your body loses its ability to maintain vitamins and minerals.