Author: Henk Kraaijenhof

One of my favorite movies, when I was a lot younger, was “Goldfinger” after the book by Ian Fleming, especially the scene where the crook Goldfinger is preparing to kill my hero by cutting him …

I have decided to write a small series about performance enhancement in elite sports. Enhancing performance is not an easy task in elite sports for several reasons. In many sports an athlete has to train …

Who will miss us? Apart from the bad news this Corona-situation brings, there is also positive news. What is becoming perfectly clear is how fragile our social and political structures are and how the current …

“May you live in interesting times” funny enough a Chinese wish, and yes, they were right: we do live in interesting times. A lot of people ask me what I think about the situation and …

Due to a typo someone made in the process of protecting my blog yesterday, a strange warning appeared instead of my blog. Don’t worry, nothing happened, problem solved.

Since there was a lot of enthusiasm about the last two posts of this blog, , I will continue to support your quest to stay healthy. Especially since the last outbreaks of viral infection in …

In the last post I wrote about measures to strengthen the immune system in general. But some people could be interested to step it up a little bit. Note: the information below is not meant …

It can hardly have escaped your attention, the Corona virus is having a huge global impact. It is by far not the most deadly virus, but its social and economic impact cannot be ignored. Apart …

The word motivation comes from the Latin ”movare” and means “moving. Moving from A to B, like an arrow or a vector with two components, a certain direction and a certain force or duration. The …

The word “natural” is use in many different contexts, but in most cases it is meaningless. In many cases this issue can be solved by asking yourself what “natural” or nature really means in your …