The component in tobacco smoke that is considered to be cancer causing

The five components of health-related fitness include cardiorespiratory fitness, muscular strength, resting heart rate, muscular endurance, and body composition cardiovascular fitness, muscle tone, muscular endurance, flexibility, and body composition calisthenics, muscular strength, muscular endurance, flexibility, and body composition cardiorespiratory fitness, muscular strength, muscular endurance, flexibility, and body composition

If a person has a bad pain in their back, specifically lower back a bit above the hip, what should they do besides going to the doctor? what remedies could they use?

Which of the following is also referred to as "swayback"? a. kyphosis b. scoliosis c. lordosis d. none of the above