Low to moderate exercise (15-20 miles/week) begun in sedentary women with regular cycles and > one year buildup will not result in problems. Moderate to intense training (30-50 miles/week) building up over two months in young women will more than likely result in significant menstrual abnormalities.
1 Phone Number: The contact phone number for Comcast headquarters is 1-215-286-1700.  Fax Number: All fax communication with the corporate office should be sent to 1-215-981-7790.
Corporate Phone Number: 1-908-559-5490. Mobile Service Number: 611 from your mobile. Customer Service Phone Number: 1-800-922-0204. Pre-Paid Customer Service: 1-888-294-6804. The email addresses would be the corporate name followed by @verizonwireless.com you can get the officers names from the other helpers post.