Target heart rate is defined as the minimum number of heartbeats in a given amount of time in order to reach the level of exertion necessary for cardiovascular fitness, specific to a person's age, gender, or physical fitness.
Being underweight can contribute to a very frail and weakened immune system. It can make one feel tired mentally. And can also affect the bones by making them very brittle and frail sometimes.
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you breathe in, it fills your lungs, you breathe out
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Answer:
No, without a proper nutrition, your body won't receive the nutrients and vitamins that helps it stay fit and eventually lose weight. For example, if your were out and worked out for 1 hour cardio, you would lose a couple pounds. But, if then you went home and ate a greasy burger or microwaved meal, you pretty much gain all of the weight back and probably even more. However, if you ate a healthy and nutritious lunch, it would probably give you more energy, improve your diet, and sustain your metabolism. To lose weight in a healthy way, there must be a balance in your diet and physical activity.
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