Your heart rate is increased during physical activity to increase cardiac output and deliver the blood flow needed to the muscles to carry out those activities. Your heart itself is a muscle, and also gets a workout during exercise. The job of the heart is to get more blood to the body's muscles when they work hard. Hope this helped.
The right answer is 1.).
Natural sugar is better for you in every respect than white sugar.
All natural sweeteners are less caloric or acaloric for some. They promote weight loss and limit obesity. To know that the most caloric natural sugars also bring the most trace elements and antioxidants, good for health.
The glycemic indices are lower, ranging from 0 for stevia or erythritol, maltitol to 30, up to 70 for complete sugar. These diabetic sugars limit the level of sugar in the blood.
Exhaustion would be a key answer to this but they're others if needed.
FITT stands for frequency, intensity, time, and type. These principles can be used to plan how often you will eat, how much food you will eat, when you will eat, and the quality of the food or calories contained relative to the quantity.