You are very right to be Skeptical and much of what is being talked about when it comes to "Meditation" (both in this thread and elsewhere) should be taken with a "bucket full of grains of salt".

However, be careful to not "throw out the baby with the bathwater". Ignoring obvious woo-woo claims and just focusing on documented Health Benefits is the right way to approach it. Others have posted some useful links from NIH/NCCIH which gives you some good starting points for study.