You don’t explain very well but the sentence it’s true
Answer:
Girls have menstrual cycles because girls have changes of hormones in their body. The hormones make the lining of the uterus build up. This gets the uterus ready for an egg which when the egg is released it causes a period also known as a menstrual cycle which happens normally every month for at least 3-7 days.
Explanation:
The strength of endurance of a muscle depends on lots of things. One main thing that it depends on is a healthy diet. What you eat and drink has certain chemicals that are healthy for you that your body consumes to help strengthen your muscle and build stamina whereas if you put something bad in your body it will evidently weaken your muscles and stamina.
Hope that helps!
