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Buna göre nikotinin beyni değiştiriyor olabileceği öne sürülüyor.</p> <p class="MsoNormal">Uzmanlar araştırma bulgularının oldukça güçlü olduğnu söyleseler de, daha ileri araştırmalara ihtiyaç olduğunu belirtiyorlar.</p> <p class="MsoNormal">Sigara içmek uzun bir süredir psikozla ilişkilendiriliyordu ancak yaygın inanışa göre şizofreni hastaları sigara içmeye daha yatkındı çünkü sigarayı sesler duymanın ve halüsinasyonlar görmenin yarattığı stresle başetmenin bir yolu olarak kullanıyorlardı.</p> <p class="MsoNormal">King's College'daki ekip 14.555 sigara kullanıcısı ile 273.162 sigara içmeyen insana ait verileri incelemiş.</p> <p class="MsoNormal">Buna göre psikoz geçiren kişilerin yüzde 57'si, ilk psikozlarını geçirdiklerinde hali hazırda sigara tiryakisi imiş.</p> <p class="MsoNormal">Her gün sigara içenler içmeyenlere göre şizofreni gelişmesi konusunda iki kat daha fazla risk altında.</p> <p class="MsoNormal">Sigara içenlerde şizofreni ortalamaya göre bir yıl daha erken görülmeye başlıyor.</p> <p class="MsoNormal">Sigara içen herkes elbette şizofreni geliştirmiyor ancak araştırmacılar sigara içmenin riski artırdığını düşünüyor.</p> <p class="MsoNormal">Şizofreni normal koşullarda her 100 kişiden birinde görülebilirken, sigara ile bu oran yüzde 2'ye çıkıyor.</p> <p class="MsoNormal">Araştırmacılar sigaranın içindeki nikotinin beynin kimyasallarından olan dopamin seviyesini değiştirdiğini ve dopaminin psikozda önemli rol oynadığını söylüyor. 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