What is bikam yoga?

I'm guessing you mean bikram yoga :) It's also called hot yoga these days as it's the most popular form of hot yoga. It takes place in a VERY hot room (anywhere from 95-105oF) and there's usually an at least 30% humidity level.

The combination of humidity, high temperature levels, and poses that twist your abdominal region (which squeezing some of your organs) help you to sweat out unneeded toxins and bacteria in your body.

It's also the form of yoga that is second highest in the amount of calories burned in a 1 hour session (Avg. of 477 calories/1 hour).

Hope this helped :)