State true (T) or false (F).
Once it starts, puberty lasts the whole life for an individual.

Answer

To determine whether the statement "Once it starts, puberty lasts the whole life for an individual" is true or false, we can follow these steps:

1. **Understanding Puberty**: Puberty is a developmental stage that occurs during adolescence when an individual undergoes physical and hormonal changes that lead to sexual maturity.

2. **Duration of Puberty**: Puberty does not last for a lifetime. It is a phase that typically lasts for several years.

3. **Age Range for Puberty**:
- For girls, puberty generally begins earlier and usually lasts until around the ages of 14 to 15.
- For boys, puberty typically starts a bit later and can last until the ages of 15 to 18.

4. **Conclusion**: Since puberty has a specific duration and does not continue throughout an individual's life, the statement is false.

Therefore, the answer to the question is **False (F)**.