ÖzProbiyotikler, ağız yoluyla yeterli miktarda alındığında konakçısının sağlığına faydalı olan sindirim kanalı mikroorganizmalarıdır. Probiyotikler; insan kaynaklı olup patojen ve toksijenik olmama , bağırsak hücre epiteline tutunabilme, antimikrobiyal özellikte salgı yapabilme, mide asidi ve safraya dirençli olma ve konakçının sağlığına olumlu etki yapabilme gibi özelliklere sahip olarak patojen mikroorganizmaların inhibisyonunu sağlar, gastrointestinal mikrobiyotayı iyileştirerek gıdaların sindirilebilirliğini arttırır, immün sistemi destekler, kan kolesterol seviyesini düşürür ve prebiyotiklerin emilimini artırıcı etki gösterir. Laktikasit bakterileri; probiyotiklerin tüketicinin sağlığı üzerinde yarattığı etkilerin en ayrıntılı olarak araştırıldığı mikroorganizma grubudur. Mikrobiyota, belirgin bir ekolojik yer veya çevre içerisinde bulunan mikroorganizmalar topluluğu olarak tanımlanmaktadır. Kadın üreme sistemi mikroorganizma florası; üreme sağlığı, gebelik ve yeni doğan sağlığı açısından oldukça önemlidir. Mikrobiyota gelişimine etkisi olan temel faktörlerin başında doğum şekli, annenin mikrobiyotası, anne sütü alımı, antibiyotik/probiyotik kullanımı, beslenme ve bakterilere çevresel maruziyet bulunmaktadır. Probiyotikler, gebelik komplikasyonlarının ve maternal metabolizma ile ilgili olumsuz sonuçların önlenmesi için güvenli bir terapötik araç olacak potansiyele sahip olduğu çalışmalar ile desteklenmektedir.

Cancer is a disease characterized by uncontrolled cell proliferation manifested by tumor formation, which is a physiological disorder. Childhood cancer is the leading cause of death in children. Following the World Health Organization's emphasis on child health, most governments around the world have taken measures to facilitate childhood cancer research. With the advent of multimodality therapy, it is seen that the death rate from cancer has decreased in the last five years, and today, cancer survival has exceeded 80% in most European and North American countries. Significant advances in survival have led to an ever-increasing population of childhood cancer survivors. Childhood cancer survivors are at risk for various serious physical and mental health conditions attributable to cancer and its treatment, as well as adverse social and socioeconomic consequences and reduced psychological well-being and quality of life. Early diagnosis is important in children because there are no screening tests like in adults And it is a very important task to be careful with, for the physicians who follow the child. Studies prove the idea that reduction in daily physical activity is the primary cause of chronic diseases/conditions and that physical activity/exercise is the rehabilitation treatment (therapy) of dysfunctional dysfunctions caused by inactivity. The aim of this review is to examine general information about childhood cancer and the effects of physical activity.

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COVID-19 is a disease that spreads rapidly by being transmitted from person to person by droplet infection and is defined as a pandemic by the World Health Organization. Social isolation, compliance with hygiene rules, adequate and balanced nutrition are of great importance in this period. Our study aimed to investigate the impact of the COVID-19 epidemic on the stress experienced by Haliç University students and their eating habits and lifestyle changes. Data collection was carried out through a structured questionnaire created in Google Forms (online). In addition, the stress level was determined using the "Perceived Stress Scale". Change in physical activity level, change in dietary habits, and change in desire to eat out were significantly correlated with perceived stress level (p=0.007; p=0.02; p=0.003, respectively). But it was not found to be associated with BMI (p=0.02). During quarantine, we must encourage healthy eating and physical activity at home. The number of studies examining the adaptation of university students, who have an important role in the development of society both in the world and in our country, to epidemic conditions is limited. Therefore, this study will contribute to the literature.