What advice can you give to others who are considering participating in fitness activities?

Drink lots of water, and take cold showers. Make sure to stretch before doing the said activities.

the answer is d

hope this and you do good

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.