You need a doctors prescription for birth control, but for condoms and plan b, you can buy over the counter at Walmart, cvs, Walgreens or any other drug store. All work if used correctly
Answer: Crunches target the rectus abdominis and other abdominal muscles. An ab crunch machine is designed to strengthen the abdominal muscles. Wearing compression underwear can give the stomach a more toned appearance. Ab crunches are a great exercise for people looking to shed weight
Explanation:
Measure your heart rate before, during and after work outs and write it down. Monitors can be worn as a strap across the chest, on the wrist and even on the head, and by measuring your heart rate can help you exercise at the right intensity. Most don't have a display, so you'll need to connect your monitor with a sports watch or smartphone app to see your heart rate.
Answer:
The blood picks up co2 and also waste from the tissue. So I am guessing that it is co2.
Hope this helps.