if you cant take your heart rate, a good way to recognize that your exercising efficiently is whether or not

Reason 1. It's Difficult to have a conversation Reason 2. You're experiencing some huffing and puffing Reason 3. you're gasping for breath.   D. your muscles are burning.

Explanation:

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there are men and women, some choose to be both or change their gender. often times those people go by "other". those who change their gender are known as "transgender"