Which is a social benefit of abstinence? reduced chance of becoming infertile later in life
less likely to develop testicular or breast cancer
reduced stress about getting STDs
opportunities to build emotional relationships before sexual ones

c. the runner should sprint as fast as possible to the finish line.

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.