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infographics

Vox: the one health study chart to rule them all

Vox created a great chart and wrote a great piece in regards to health studies. From the article you can understand why some studies need more attention than others and why some studies could almost be ignored.

What you strive for is to find studies that were Experimental – Randomized controlled trials, even double blind randomized controlled trials. Also, meta analysis and systematic reviews can show the trends in different studies so that you understand a range of studies better.

Here is the chart:
study_design_v3.0

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learn science

You should get a flu shot


Common cold is not that big of a risk, but the flu is. You should get a flu shot in order to prepare your body for the following weeks of virus attacks. If you get a flu shot and feel ill, then you need to know that you were not infected, but your body sensed the inactive virus and then reacted like it was a live one. No worries in there.

The more will get a flu shot, the better for the entire community.

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learn science

Good old myth about fluoride in water debunked


One of my favorite doctors, Sean Carroll, from Health Care Triage, explains why a recently circulated study about fluorinated water being bad is just a myth. First of all, look at the origin of the study: China and Iran. Not the most trusted sources in regards to anything. They make good copies of everything, though 😀

When it comes to fluoride in water, it was a necessary addition in US and the doze is very small, about 1.2 mg/L in NY as opposed to 11.2 mg/L int he China study. Also, using fluorinated water decreased tooth decay by about 50% in adults and children. The studies conducted in US did not show any issues for the general population.

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learn science

Healthcare Triage trio: systematic reviews, pot, and meta analysis


Systematic reviews, as opposed to review, which are opinions of scientists, look at a ton of studies on a given topic and then derive the conclusions from there. Systematic reviews are scientific studies made to discover patterns and find the truth. they also are transparent enough to let others follow the same path and test the conclusions.

In the news from below you will learn that pot, ie medical marijuana, is not that dangerous and it can be used to reduce pain. Several US states have started accepting it to be publicly used. also, swearing reduces pain too.

While systematic reviews are a good way to use studies of studies in order to get some valid conclusions, there is also the meta analysis. Meta analysis simply merges all the data from all studies in order to get the truth out. Systematic reviews check many studies and rule out those who won’t be deemed useful: