They reduce pregnancy because the delay the uterus releasing the egg, and delay ovulation. Less than 1% of women who use IUDs pregnant, although pregnancies after the emergency contraceptive pill are not as rare.
Desire to be popular
Desire for independence
Boredom
Loneliness
Inability to cope with problems
<span><span>Cardiorespiratory endurance
Muscular strength
Muscular endurance
Body composition
Flexibility </span></span>