"1. what changes were observed after the volunteer exercised? "

The expiratory flow peaks this measurement with an instrument called the Peak Flow Meter. the Peak Flow test makes the difference between an asthma attack and a sluggishness. For people who suffer from asthma, it allows them to see if their treatments are effective or not.

- A teenager measuring 1.45 m has a theoretical DEP of 350 L / min.

- A 30-year-old woman measuring 1.60 m has a theoretical DEP of 490 L / min.

- A 50-year-old man measuring 1.80 m has a theoretical DEP of 620 L / min.

We do not have information on the patient, but there is a decrease in peak expiratory flow after exercise, a decrease of more than 20% compared to normal, it means that we are asthmatic or in crisis asthma.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

if you look up in the top right corner you'll see your current profile picture, click than click "view profile" you'll be able to change it there.