Great article, learned a lot from it! But I still really get it with the share trigger and right content. For instance, the influencers now care a lot about the new Koenigsegg Agera RS >> (Car). I thought about an article like “10 things you need to know about the Koenigsegg Agera RS”. The only problem is that I don’t know which keywords I should use and how i can put in share triggers.

Vary your article length. You should have long, comprehensive articles as well as short and to-the-point articles. Let the content dictate the size; don’t spend too long belaboring a simple point, but don’t be too brief when detail is called for. research suggests the average length should be around 1,600 words, though feel free to vary as you see fit.
As I had a teacher at school who was always really picky on how to draw conclusions I must say that the conclusions you drew for your health situation might be true, but dangerous. For example: If slightly more women than men suffer from health deseases it could be wise to write the information toward women. But, if you take search behaviour into account thing could look a lot different: It might turn up that men search more than women or that (senior) men are more present on the net than women.
Search engines find and catalog web pages through spidering (also known as webcrawling) software. Spidering software "crawls" through the internet and grabs information from websites which is used to build search engine indexes. Unfortunately, not all search engine spidering software works the same way, so what gives a page a high ranking on one search engine may not necessarily give it a high ranking on another. Note that rather than waiting for a search engine to discover a newly created page, web designers can submit the page directly to search engines for cataloging.

If you're looking to upload an image to a blog post, for example, examine the file for its file size first. If it's anywhere in megabyte (MB) territory, even just 1 MB, it's a good idea to use an image compression tool to reduce the file size before uploading it to your blog. Sites like TinyPNG make it easy to compress images in bulk, while Google's very own Squoosh has been known to shrink image file sizes to microscopic levels.

You have also mentioned Quuu for article sharing and driving traffic. I have been using Quuu for quite sometime now and I don’t think they’re worth it. While the content does get shared a lot, there are hardly any clicks to the site. Even the clicks that are there, average time is like 0.02 seconds compared to more than 2 minutes for other sources of traffic on my website. I have heard a few guys having a similar experience with Quuu and so, I thought should let you know.
Yahoo!'s Pay-Per-Plick (PPC) Program shows paid ads at the top and right of the results pages. websites that show up here bid on keyword phrases and pay Yahoo!® a small fee each time the ad is clicked on. The more you bid per phrase the higher your ad will appear on the results page. Yahoo! PPC is a great way to help drive traffic quickly to your website. You can set a daily budget. When you max out your budget, Yahoo! will pull your ad for the remainder of the day.
If you are using Responsive Web Design, use meta name="viewport" tag to tell the browser how to adjust the content. If you use Dynamic Serving, use the Vary HTTP header to signal your changes depending on the user-agent. If you are using separate URLs, signal the relationship between two URLs by tag with rel="canonical" and rel="alternate" elements.