The plug-ins. I’ve been discovering different types of adds to keep health but let’s start with this minor factor one. For the travellers are a must and for the stay ins a constant. You know, the rhythm never stops and before flu shows up and knock you out, it is better be safe than sorry. Flu is a little thing but can grow higher and give you some hard ill stuff, I had bronchitis last year and a friend a pneumonia quite difficult for a recover taking up a couple of months arresting bits of other weeks.
I would say VITAMIN C is permanent over the years.
On the hot weather also works, so it is wise keep it always by the side.