Working from home can be challenging, especially for those who've never done it before. You're "at home", in that safe and familiar refuge where you normally take a break from work... but now your work has crept into that place too, so you're feeling pressure to be productive instead of relaxing, and that's a little unnerving. :) We can try to shake that feeling by stepping away for 5 minutes and doing something else to give our brains a moment to reset, but careful where you choose to step! Breaks can become habits... some are good, some are bad.
Grabbing a snack from the fridge is an activity that can "accumulate" over time, watering the houseplants is best avoided unless they're already aquatic, and don't start composing a grand symphony as you won't finish that in 5 minutes. Here are some sensible tips to keep "cabin fever" at bay in a sensible way :
Step outside, take a breath of fresh-air and look at something far away to give your eyes a break.
Talk with a family member.
Give the family pet a bit of love and attention, it's good for both of you!
Start a load of laundry, or fold some until your 5 min is up.
Pull some weeds in the back yard, re-pot a houseplant, or just take a moment to admire your green-space.
Take a camera or phone and snap a few photos... try to improve your technique.
Grab a broom and give the floor a sweep.
Take some soap and a brush and give the bathroom sink and faucet handles a scrub.
... or choose some other brief, real-world task that you can finish in 5 minutes, and then make it happen. They can all give your mind a moment to "chill", and help get you back in the groove so that you can sit down and focus again.