Irritable bowel syndrome (IBS) is a a chronic functional gastrointestinal disorder, that affects large intestine. The symptoms of IBS include: abdominal pain, discomfort, change in bowel habits and disordered defecation. The causes of irritable bowel syndrome have not yet been fully investigated and determined.Peppermint (Mentha ×piperita) is a hybrid type of mint, a cross between watermint (Mentha aquatica) and spearmint (Mentha spicata). Peppermint oil is produced in the proces of steam distillation of fresh leaves of peppermint.The aim of this study was to evaluate the use of peppermint oil in the treatment of irritable bowel syndrome. Our study material consisted of publications, which were found in PubMed, ResearchGate and Google Scholar databases. The first step was to find proper publications from the last 30 years. The second step was to carry out an overview of the found publications.Based on the results of mentioned studies it can be concluded that peppermint oil is effective in the treatment of irritable bowel syndrome due to providing global symptom improvement and significant reduction of abdominal pain, and its short-term use is safe. However, further research is needed to estabilish the role of peppermint oil in the treatment of irritable bowel syndrome and to determine the optimal duration of treatment, dosage of peppermint oil, and its possible side effects related to long-term usage.

Prediction of the development and susceptibility to acute mountain sickness (AMS) by monitoring oxygen saturation (SpO2)-literature review.

High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema, that develops within the first 2-5 days in rapidly ascending individuals at altitudes above 2,500-3,000 m. The clinical features are cyanosis, tachypnoea, tachycardia and elevated body temperature generally not exceeding 38.5°C. It is often severe and potentially fatal manifestation of acute mountain sickness (AMS). The aim of this study was to assess the methods of prevention and treatment of high altitude pulmonary edema (HAPE). Our study material consisted of publications, which were found in PubMed, ResearchGate and Google Scholar databases. The first step was to find proper publications from the last 30 years .The second step was to carry out an overview of the found publications. Gradual ascent and staged ascent are the most effective methods of prevention of HAPE Pharmacologic prophylaxis with nifedipine should only be considered for individuals with a history of HAPE. Before initiating treatment of HAPE differential diagnosis should be done. Descent should be initiated and oxygen therapy should be started when HAPE is suspected or diagnosed. If these methods are unavailable, nifedipine or Gamow bag can be used.

Insomnia, anxiety and stress are common complaints of people living today. Together, these factors can significantly reduce the quality of people's lives and disrupt relationships. Insomnia is a health problem connected with the difficulty falling asleep, waking early, waking during sleep, or poor quality of sleep, the consequences of which during the day are a feeling of being fatigue, reduced well-being, irritability, impaired concentration and learning ability. Anxiety is an emotional state related with anticipation of danger coming from the outside or coming from inside the organism, manifesting itself as feeling of uneasiness, tension, embarrassment, threat. Stress is a disturbance of body homeostasis caused by a physical or psychological factor. The aim of this study was to assess the efficacy and safety of  ashwagandha root extract in the treatment of insomnia, anxiety and reducing stress. Our study material consisted of publications, which were found in PubMed, ResearchGate and Google Scholar databases. In order to find the proper publications, the search has been conducted with the use of a combination of key words like: ''ashawagandha'', ''insomnia'', ''anxiety'', ''stress". The first step was to find proper publications from the last 5 years. The second step was to carry out an overview of the found publications. Currently a lot of researches is being conducted to find natural substances that are just as effective as pharmacotherapy in the treatment of insomnia, anxiety and reducing stress, but without the side effects. Some researchers have focused their attention to the ashwagandha root extract.  Results of mentioned studies proved the efficacy and safety of ashwagandha root extract. However, further research is needed to estabilish the role of ashwagandha root extract in the treatment of insomnia, anxiety and reducing stress.

Travelers' diarrhea is defined as the passage of three or more unformed stools per 24 hours plus at least one additional symptom such as nausea, vomiting, abdominal cramps, fever, blood/mucus in the stools, or fecal urgency that develop while abroad or within 14 days of returning from any resource-limited destinations.The aim of this study was to show the methods of treatment of traveler's diarrhea. Our study material consisted of publications, which were found in PubMed, ResearchGate and Google Scholar databases. In order to find the proper publications, the search has been conducted with the use of a combination of key words like: '' traveler's diarrhea,'', ''travel'', ''diarrhea'', ''antibiotic". The first step was to find proper publications from the last 30 years .The second step was to carry out an overview of the found publications.Major goals of treatment of the traveler's diarrhea are: to maintain optimal hydration level, to reduce the severity and duration of diarrhea and to eradicate pathogenic agents responsible for causing this disease. The choice of the best possible method of treatment of traveler's diarrhea depends on the patient's general condition, his medical history, severity and duration of diarrhea and the pathogenic agent that causes this disease.