What are ergogenic aids designed to do

people use them to improve their performance during high-intensity physical exercise.

Explanation:

ergogenic aids are anything that give you a mental or physical edge while exercising or competing. caffiene, sports drinks nd illegal substances are examples or performance enhancers or ergogenic aids.

People use performance enhancers to improve their performance during high-intensity physical exercise. A performance enhancer, or ergogenic aid, is anything that gives you a mental or physical edge while exercising or competing. This can range from caffeine and sports drinks to illegal substances.

Explanation:

answer; i believe the correct answer is (secondary prevention);

answer (c) by causing social withdrawal;