If at all possible, it would help if you could get up and move around, walk or go up and down stairs, anything to get your body active. Sitting for long periods will make me really sluggish and at times can cause my blood pressure to drop. Another thing is to make sure you drink plenty of water or other fluids to keep hydrated. We often don't think we need to drink as much when we are sitting but toxins build up in our bodies if we don't keep them hydrated. These are things that help me.

Plenty of water is crucial! Be sure not to drink tap water, the chemicals can trigger pain,get a great purified water delivery company with a dispenser, makes it easy to remember to drink, very low cost and great for all in the family....

Like most of the answers I walk as much as I can, swimming, and light exercise.. I love the garden and gardening. I have recently took up flower arranging...

I find this happens to me a lot. I keep a bottle of water by my desk, along with something to snack on.

quick sugar for me handfullof grapes tangerine or a banana deepbreaths of fresh air get the oxygen back to the foggy brain and big smiles also keepme awake.