Tuberculosis Is Originally Caused by Smoke of Fire
Biologists at the University of New South Wales came to conclusion that the cause of tuberculosis is controlled fire use in early humans who lived during Pleistocene era (ended about 10 thousand years ago). It was reported by Proceedings of the National Academy of Sciences.
Researchers concluded that a smoke from fire could make lungs weaker and susceptible to infection by the bacterium Mycobacterium tuberculosis.
Tuberculosis is caused by the bacterium Mycobacterium tuberculosis. Previously it was thought that people got the disease from animals more than 10 thousand years ago, but recent data suggest that, on the contrary, people passed pathogenic strains of mycobacteria to mammals.
A computer model of the evolution of mycobacteria revealed that the microorganism was unlikely to be pathogenic in normal environmental conditions. However, if to count susceptibility of people with damaged lungs and increasing of number of social contacts during the time of primitive communal system, the bacteria that originally was not pathogenic, was more likely to get into human body and cause an infection. Biologists emphasize that this is just a theory.
At the same time, we know that the smoke particles have a detrimental effect on the immune system, which protects the lower respiratory tract.
A new study from the US suggests that middle-aged men who are able to do 40 push-ups and more in one session have lower risk of cardiovascular disease than men who can do fewer than 10 push-ups. For a retrospective longitudinal study from 2000 to 2010, 1,104...
Recent research from Massachusetts General Hospital in Boston, US, suggests that getting enough sleep at nights connected to the decreased risk of developing atherosclerosis, a condition in which plaque builds up on the inner walls of the arteries. For the study, a...
In childhood, many of us dreamed of learning to jump high. Now, after years, it became easier - Kangoo Jumps has appeared. This is one of the relatively new, but quickly gaining popularity types of fitness training. There are several advantages of jumpers. ...read more
It is time for us to find the solution how to deal with extra weight which is coming with Christmas and New Year’s celebrations because 2018 is almost over and 2019 is getting closer. The main aim is obviously staying in shape and today will find an effective way to...read more
We know that moderate exercise strengthens our health and makes us more beautiful. But few know about the importance of doing sports as psychotherapy. And, nevertheless, physical loads can save from depressions, reduce anxiety, relieve from professional burnout,...read more