Explanation:
You can check if you're underweight by using our BMI healthy weight calculator, which shows your body mass index (BMI). If your BMI is below 18.5, this suggests that your weight may be too low. If you're underweight, or you're concerned that someone you know is, tell a GP or practice nurse.
Define “the following” so we can answer the question
Launching children means when your first child leaves home and ends with a "empty nest".................. Developing adult relationships with your children is a key of a stage.