Bunday materiallar yoshlar, ayniqsa, osib olish, sport, psycho-gigiyena ham sex. Har qanday materialdan foydalanishda madaniyat. Stress, xavotir, tashvish, depressiya, ruhiy rivojlanish, yangi bilim, madaniyatli muhit va emotsional baxt, yangilikka intilish.
