#5 - Highly recommended for all
Brief moments of switching off from the world of screens and phones and every techie device can give us fresh strength and vigour to complete our day.

Whenever I make myself do this, I feel very much perkier. Age immaterial. It's merely a good habit. But you have to promise yourself not to think of the next thing you've got to do, must do, hurry up and do - call a halt! Ignore all the 'do's and just relax. If only for a few minutes. You could call it a short-form meditation perhaps.
Positive rest
On a hectic day
Slip away from the fray
Just take a moment of leisure
This simple ploy
Can lengthen your life
Cut stress and strife
To bring back a fresh sense of joy.
After all, our brains never stop. Well, some days it seems as if they have, but that's a different matter! Most of us are attached to our screens of one kind or another for an alarming number of hours per day. Latest data, I believe, if you're working in an office is about six and a half hours. Not counting home time with television, phones, tablets…it's a lot. 'Overwhelm' is a word now frequently used.
Personally, I often need a reminder to quit whilst I'm ahead. That expression 'Take your time' can have a new significance. I'm trying my best these days to take 'my' time. Which might give me a real problem if it's radically different from everyone else's!