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  2. Upper gastrointestinal bleeding - Wikipedia

    en.wikipedia.org/wiki/Upper_gastrointestinal...

    Upper gastrointestinal bleeding affects around 50 to 150 people per 100,000 a year. It represents over 50% of cases of gastrointestinal bleeding. [2] A 1995 UK study found an estimated mortality risk of 11% in those admitted to hospital for gastrointestinal bleeding. [3]

  3. Hemoglobin - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin

    Initial oxidation to the ferric (Fe 3+) state without oxygen converts hemoglobin into "hemiglobin" or methemoglobin, which cannot bind oxygen. Hemoglobin in normal red blood cells is protected by a reduction system to keep this from happening. Nitric oxide is capable of converting a small fraction of hemoglobin to methemoglobin in red blood cells.

  4. Mentzer index - Wikipedia

    en.wikipedia.org/wiki/Mentzer_index

    [2] [3] The index is calculated from the results of a complete blood count. If the quotient of the mean corpuscular volume (MCV, in fL) divided by the red blood cell count (RBC, in million per microliter) is less than 13, β-thalassemia trait is said to be more likely. If the result is greater than 13, then iron-deficiency anemia is said to be ...

  5. Blood sugar level - Wikipedia

    en.wikipedia.org/wiki/Blood_sugar_level

    In a healthy adult male of 75 kg (165 lb) with a blood volume of 5 L, a blood glucose level of 5.5 mmol/L (100 mg/dL) amounts to 5 g, equivalent to about a teaspoonful of sugar. [14] Part of the reason why this amount is so small is that, to maintain an influx of glucose into cells, enzymes modify glucose by adding phosphate or other groups to it.

  6. Alpha Centauri - Wikipedia

    en.wikipedia.org/wiki/Alpha_Centauri

    Alpha Centauri C is about 13,000 AU (0.21 ly; 1.9 × 10 ^ 12 km) from Alpha Centauri AB, equivalent to about 5% of the distance between Alpha Centauri AB and the Sun. [17] [57] [69] Until 2017, measurements of its small speed and its trajectory were of too little accuracy and duration in years to determine whether it is bound to Alpha Centauri ...

  7. Exercise - Wikipedia

    en.wikipedia.org/wiki/Exercise

    Cycling is a popular form of exercise. Weight training. Exercise or workout is physical activity that enhances or maintains fitness and overall health. [1] [2] which is performed for various reasons, including weight loss or maintenance, to aid growth and improve strength, develop muscles and the cardiovascular system, prevent injuries, hone athletic skills, improve health, [3] or simply for ...

  8. Malaria - Wikipedia

    en.wikipedia.org/wiki/Malaria

    Although the parasite responsible for P. falciparum malaria has been in existence for 50,000–100,000 years, the population size of the parasite did not increase until about 10,000 years ago, concurrently with advances in agriculture [238] and the development of human settlements. Close relatives of the human malaria parasites remain common in ...

  9. Barcelona - Wikipedia

    en.wikipedia.org/wiki/Barcelona

    In 2017, this age group constituted only 12.7% of the population. In 2017, people aged between 15 and 24 years made up 9 percent of the population; those aged between 25 and 44 years made up 30.6 percent of the population; while those aged between 45 and 64 years formed 56.9% of all Barcelonans.