Although only one case has been diagnosed at this time, researchers believe that e-thrombosis may have contributed to many cases of pulmonary embolisms, but gone unnoticed.

Sitting still for hours on end leaves us vulnerable to this and possibly other health hazards. And, according to physiotherapists, working out at end of day isn't solution. By that time, damage has been done and workout could do more damage.

Prevention is not difficult. All that is required is that you move about regularly throughout day.

Get a desk that’s just-big-enough, or an e-work station with movable modules. Put that fax machine in one corner of room and copier in another. Provide yourself with articulated arm rests for computer use. Get both an adjustable chair and a fitness stool. Switch back and forth between two, and at intervals throughout day, sit on a fitness ball instead of chair or stool. Sitting on ball forces good posture and strengthens core muscles.

Have room so you can pace about as you think. Get a phone with a wireless headset that allows you to pace during phone conversations. Have standup work surfaces so you can sort papers, read reports or talk to colleagues while standing. Look into foot switches that allow you to transfer some of computer tasks to your feet instead of your hands.

Walking around only five to ten minutes each hour is all that it takes. In short, get moving! It's good for you.

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Luckily starting in 2003, if you work as a consultant, freelance worker, and other self-employed individual you will be allowed to deduct all of your health insurance premiums. This is an increase form 70% that was deductible in 2002. You can take self-employed health insurance deduction even if you do not itemize your tax return.

But, even with health insurance medical expenses that come out of your pocket can overwhelm you. If you have to dip into your retirement savings for certain medical expenses, best way to do so is to transfer your IRA or previous 401(k) account to a Self-Employed 401(K) plan that you set up. You can then take a loan from that plan. Loans from a Self-Employed 401(k) plan are tax-free and penalty free as long as they are paid back.