Last Tuesday I went to Stockholm to do field measurements. I took the first flight down and had booked the last one home. I wanted to minimize the time away from home, but I learned the hard way that it is not worth it. When you are leaving with the first flight, your night sleep is severely disrupted. I woke up before my alarm clock at 04:00. Isn’t it funny how we tend to wake up without an alarm when we have some important appointment in the morning? Anyway, the trip went fine, and I met up with my colleague at the construction site and we worked all day. When at a building site, you are obliged to always wear protective helmet and glasses. I am not used to that. After lunch time, the slight pressure on the sides of my head in combination with the sleep disturbance had set off a headache. A really bad one, that got worse by the hour.

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