Lasers can treat cancer!!

Lasers have a fuction to health as body massage ,but it can treat cancer.
The researchers found that attacking a tumor with two lasers can heat it more thoroughly than a single laser. For tumors as large as one centimeter, simulations showed opposing lasers surgically inserted via fiber optics in a minimally invasive procedure produced the most uniform temperature profile in every case.
Lasers and nanoparticles are already being used to treat cancer. A Houston company founded by Rice scientists Jennifer West and Naomi Halas, Nanospectra Biosciences, Inc., is conducting human tests of a system that uses nanoshells heated by near-infrared lasers to kill tumors. Bayazitoglu, West and Halas are all part of Rice's Laboratory for Nanophotonics.
With so many tissue types and the great variety of cancers people face, the importance of accurate simulations cannot be overemphasized, the researchers said. They hope the ability to calculate scenarios will allow doctors to find the best laser therapy to produce the perfect heating environment.
Laser treatment may be effective even if nanoparticles are not used,If the tumor has good absorption properties, slow heating can do a good job of killing the cancer, because the heat has time to get inside. If you're doing that, sometimes it's better not to use nanoparticles.