Increase blood circulation, flush away toxins from your system, help with weight loss, reduce the risk of cardiovascular disease, and most definitely, relieve stress.  Saunas come in all sizes from the prebuilt sauna stall type to a custom built sauna large enough to welcome many friends.  Often the addition of a sauna will need electrical wiring and plumbing.  A concrete floor may need to be poured (nles you are installing it in the basement, which has a concrete floor already). 

There are four common types of saunas being built today: 

1-  The traditional dry heat sauna with electric heater

2-  The wet sauna allows you to add a little water to the dry heat

3-  The steam bath (also known as a Turkish bath) emits steam. 

4-  An infrared sauna which heats the room fast and is just not the same as the dry sauna.