Radio waves from smartphones may be carcinogenic - Mobile phones and their towers generate radio waves. Several studies have suggested that though low frequency radio waves aren’t harmful to humans, but over exposure to them may lead to tumours in the body.
Smartphones cause anxiety, increased stress - Cancer aside, smartphones cause a variety of health issues. They have been found to increase anxiety and mental stress in teens. Mobile radiations may also cause learning disabilities and lowered IQ in infants, according to some reports.
ANSWER : communication
Explanation:
OK so I believe the best option for you to go with will be Pelvic inflammatory Disease.
Decrease the intenseness of the stepper machine so his heart rate doesn't go over his target heart rate zone.
