To set your intensity level, you need to use your maximum heart rate, which is determined by subtracting age from 220.
Two hormonal methods of contraception are birth control pills and implants. The pills are taken daily or 3 weeks out of the month and typically have two major hormones that prevent ovulation. The implant is a device placed in the arm that releases hormones constantly to prevent ovulation for up to 3 to 5 years.
Hope this helps! :)
