ABC World News Tonight With David Muir

A 31-year-old woman refuses to sleep without her blow dryer on in bed. Meanwhile, another woman admits to being addicted to eating half a roll of toilet paper a day.

Lauren used to be addicted to drugs and alcohol, but now she’s addicted to extreme bodybuilding. She's already sacrificed her personal life to focus all of her effort on pumping iron. Meanwhile, 24-year-old Rhonda can't stop sucking her thumb.

A 44-year-old woman has been eating household cleanser every day since she was 12, and her shame and embarrassment have caused her to keep it a secret. Then, a 20-year-old woman tans up to three times a day in tanning beds.

A woman's addiction to her puppets is so strong, she can't go anywhere without them and practices up to 12 hours a day. Then, another woman has over 20 cats despite being severely allergic to them, leaving her in isolation from the outside world.

A 19-year-old eats detergent up to seven times a day, not including the soap she eats in the shower. Then, a man is addicted to strongman competitions and training up to six hours a day.

A woman who is addicted to shoes owns over 200 pairs and calls them her "babies." She must choose between saving for her wedding or her addiction. Then, a woman has been pulling out her hair for over six years and spends up to three hours a day "pulling."

A woman can't imagine going to a social event without wearing her fur suit. She's completely dedicated to her "fursona" -- designing and sewing her costume well into the night. Meanwhile, another woman eats couch cushion to battle stress and anxiety.

A man treats his life-size doll like a human wife. Meanwhile, a woman spends up to two hours a day picking scabs all over her body.

A woman is addicted to cleaning and spends up to 8 hours a day aggressively scrubbing, washing and polishing her home. Then, another woman can't stop collecting rocks and even treks through treacherous terrain to find that perfect rock.

A man enjoys a glass of champagne, not for the bubbly, but for the crunch of the glass as he bites into it. He eats glass, light bulbs and bullets for attention. Then, a college student believes bleaching her skin will make her more accepted.

A woman is obsessed with her makeup, wears it 24-7 and disregards the damaging effects it has on her skin. Then, a woman is fascinated with the "other side" and prefers the company of those who have passed on.

A woman faces a life-threatening laxative addiction after using them to lose the "Freshman 15". Then, a woman who occasionally ate dirt as a child now craves pottery and ashes more than food or water.