Question

question 1 (mandatory) (3 points)
listen
how does regular exercise help make us more alert and energetic?
during exercise, the brain releases endorphins, the chemicals that help improve our mood.
it gets our hearts beating faster and makes you tired later in the day.
exercise burns calories and fat that can help reduce the bodies overall weight.
we breathe in more oxygen while exercising, which helps us feel more awake.

Explanation:

• Endorphins are neurotransmitters that act as natural painkillers and mood elevators. When the brain releases endorphins during exercise, it can lead to an improved mood, which in turn can make a person feel more alert and energetic.
• Option 2 mentions making one tired later in the day, which is not related to being more alert and energetic.
• Option 3 is about weight reduction, not directly about alertness and energy.
• Option 4 about breathing in more oxygen is not the main mechanism related to the feeling of being more alert and energetic in the context of the question (endorphin release is more relevant for mood - related alertness and energy boost).

Answer:

During exercise, the brain releases endorphins, the chemicals that help improve our mood.