Meaning: Stretching can make you feel more awake and ready to do things.
Choice of Words: The verb "boost" means to increase or improve something. "Energy levels" refer to the amount of physical and mental strength and vitality you have.
Alternative Expressions
Stretching can give you more pep in your step.
Meaning: This sentence means the same as the first sentence, but it uses different words to describe the same idea.
Choice of Words:Pep is a slang word for energy or enthusiasm, and step refers to your movement when you walk. So, "more pep in your step" means that you will have more energy and feel more lively when you walk.
If you stretch, you'll have more energy to play with your friends.
Meaning: This sentence gives a specific example of how having more energy can benefit you. It suggests that if you stretch, you will have more energy to do the things you enjoy with the people you care about.
Choice of Words:Play refers to any activity that you do for fun, and friends are the people you like to spend time with. So, "play with your friends" means to engage in any enjoyable activity with people you care about.