This could be many things. It's common for young girls you have irregular periods but could also be a health problem. There is also a possibility of pregnancy if she is sexually active.
The answer for this question is D
Cardio respiratory Fitness: Running, Swimming, Cycling, and Boxing
Muscular Strength: Pull-Ups, Squats, Push-Ups, and Bicep Curls
Flexibility: Yoga, gymnastics, dance, dynamic/static stretching
Body Composition: Burpees, Interval Training, Lunges, and Crunches
A condition that causes tumors to form in the brain. spinal cord, and nerves.
Treatment can help, but this condition can't be cured. can last for years or be lifelong.
Neurofibromatosis is usually noncancerous. There are three types of this condition. Type 1 can be bone deformities, learning disabilities and high blood pressure. Type 2 can cause hearing and vision loss, and vertigo. Type 3 can cause chronic pain.
Daily muscle strengthening activity is not recommended because muscle fibers need to regenerate properly and adapt to physical exertion.
<h3>What is muscle strengthening?</h3>
It is based on a series of exercises designed to work a specific muscle chain or group of muscles, helping to recover the motor qualities of the muscles.
Daily muscle strengthening activity is not recommended since the muscle needs to regenerate and adapt to the following exercise sessions, otherwise the muscle work capacity will be progressively reduced.
Therefore, we can conclude that daily muscle strengthening activity is not recommended because muscle fibers need to regenerate properly and adapt to physical exertion.
Learn more about muscle strengthening here: brainly.com/question/7707582
