True or false the resting heart rate will increase in a person who has a high level of cardiovascular fitness

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

There are two main levels of responsibility related to fitness and fire apparatus operations and preventing injuries and line of duty deaths. the first level involves personal responsibility. the second level involves

Ingredients used in tobacco products been banned?