Jet lag happens because our body temperature rhythm doesn't adjust to a new time zone as quickly as we'd like it to. Whenever you travel East, you are forced to sleep when you are not sleepy. Whenever you travel West, you experience feelings of drowisness and tiredness earlier than everyone else.

If you are planning for a long vacation and want to spend your time enjoying it as much as possible instead of starving for sleep, or trying to force sleep at night, take following precautions to set your sleep clock up for journey well in advance:

1. Proper Hydration

When you fly in a plane for 8 hour, you would lose a lot of water. You may notice that your lips get really dry during a long flight. This is because there's zero humidity in plane! And this means that water is literally evaporating out of you as if you were a puddle of cool aid on a hot summer day!

The Greek word "apnea" literally means "without breath." So, in a nutshell sleep apnea means sleeping without breathing.

People with untreated sleep apnea stop breathing repeatedly during their sleep, sometimes hundreds of times during night and often for a minute or longer.

Untreated, sleep apnea can cause high blood pressure and other cardiovascular disease, memory problems, weight gain, impotency, and headaches. Moreover, untreated sleep apnea may be responsible for job impairment and motor vehicle crashes.

There are three solutions used effectively to reduce teh effects of sleep apnea. 1. Physical or Mechanical Therapy

Nasal continuous positive airway pressure (CPAP) is most common effective treatment for sleep apnea. In this procedure, patient wears a mask over nose during sleep, and pressure from an air blower forces air through nasal passages. The air pressure is adjusted so that it is just enough to prevent throat from collapsing during sleep. The pressure is constant and continuous. Nasal CPAP prevents airway closure while in use, but apnea episodes return when CPAP is stopped or it is used improperly.

2. Surgery Some patients with sleep apnea may need surgery. Although several surgical procedures are used to increase size of airway, none of them is completely successful or without risks. More than one procedure may need to be tried before patient realizes any benefits.