YouTube on health

This is not either mundane nor pointless actually, but I gotta post it: 23 and 1/2 hours: What is the single best thing we can do for our health? - YouTube. It is astonishing. Very professional with a production crew (including a gaffer, whatever that is). As you watch it, you will keep on asking yourself, what is he selling. The astonishing thing is that he is selling nothing! It appears to be a pure public service. But look at it and judge for yourself. As for me, I am about to drive to the local mall and walk for an hour. Boring as hell, but I’ve been doing it for years (not in the mall except during winter).