How can a school most effectively raise awareness of bike-helmet safety? by holding a bike-helmetâ€""awareness event by hosting a talk about bike helmets at a retirement home by expelling students who do not wear bike helmets by encouraging students to walk instead of riding bikes.

Iwould say c. take responsibility for your behavior

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.

True your body needs vitamins such as protein, vitamin d, fish oil etc